# `_wip/` — the pre-promotion tier

**851 projects across 29 mapper folders**, every one of them building
byte-identical to its original ROM.**

This file is the handoff for everything under `_wip/<MAPPER>/<Project>/`. The
promoted tier (41 projects — 38 under `NROM/`, plus `CNROM/World Class Track
Meet (U)`, `UNROM/Zanac (U)` and `MAPPER8/Mermaids of Atlantis (U)`) is
documented in `README.md`; this file covers the tier that is *not* promoted yet.

---

## 1. What the tier is

`_wip/` mirrors the promoted tier's structure exactly — one flat folder per
project, under a folder named for the project's mapper:

```
_wip/
  NROM/       35 projects   (mapper 0, plus one whose header byte 7 is ASCII)
  MMC1/      221 projects   (mapper 1)
  UNROM/      97 projects   (mapper 2)
  CNROM/      57 projects   (mapper 3)
  MMC3/      239 projects   (mapper 4)
  MMC5/      10 projects   (mapper 5)
  MAPPER7/    39 projects   (mapper 7)
  ... 22 more folders, one per remaining mapper
```

> **`_wip/MAPPER8/` was not part of this tier.** It held a copy of
> `Mermaids of Atlantis (U)`, which had already been promoted to
> `MAPPER8/Mermaids of Atlantis (U)` at the top level. It was a leftover of
> a promotion, not a project waiting for one, and it has been removed -
> `Xevious (U)`, `Zanac (U)` and `Mermaids of Atlantis (U)` were all promoted
> the same way and their `_wip/` folders are gone.

Each project folder is **flat** — no `copilot/` subfolder:

| File | Purpose |
|------|---------|
| `prg.s` | the disassembly (Pass 0: a single `.incbin "prg.bin"`) |
| `header.s` / `chr.s` / `trailer.s` | the other ROM segments, as ca65 includes |
| `prg.bin` / `header.bin` / `chr.bin` / `trailer.bin` | the binary splits |
| `rom.nes` | a space-free copy of the original ROM, for `cmp` |
| `linker.cfg` | the MEMORY areas |
| `symbols.inc` | NES hardware register names |
| `locals.inc` | zero-page aliases |
| `Makefile` | build and byte-identity check |
| `README.md` | per-project ROM facts and open work |

## 2. The mapper folders

The mapper is read from the iNES header: byte 6's upper nybble holds mapper
bits 0-3 and byte 7's upper nybble holds mapper bits 4-7. The folder name
follows the repository's board vocabulary where it exists, and the mapper
number otherwise.

| Folder | Mapper | Board | Projects |
|--------|--------|-------|----------|
| `NROM/` | 0 | NROM | 36 |
| `MMC1/` | 1 | MMC1 (SxROM) | 221 |
| `UNROM/` | 2 | UxROM — UNROM, non-battery | 97 |
| `CNROM/` | 3 | CNROM | 58 |
| `MMC3/` | 4 | MMC3 (TxROM) | 239 |
| `MMC5/` | 5 | MMC5 (MxROM) | 10 |
| `MAPPER7/` | 7 | AxROM | 39 |
| `MAPPER9/` | 9 | MMC2 (PxROM) | 2 |
| `MAPPER11/` | 11 | Color Dreams | 40 |
| `MAPPER13/` | 13 | — | 1 |
| `MAPPER34/` | 34 | BNROM (NINA-001) | 1 |
| `MAPPER41/` | 41 | — | 1 |
| `MAPPER47/` | 47 | — | 1 |
| `MAPPER64/` | 64 | Camerica | 6 |
| `MAPPER65/` | 65 | Codemasters | 27 |
| `MAPPER66/` | 66 | GxROM | 18 |
| `MAPPER67/` | 67 | — | 7 |
| `MAPPER68/` | 68 | — | 4 |
| `MAPPER69/` | 69 | — | 1 |
| `MAPPER71/` | 71 | FuROM | 12 |
| `MAPPER73/` | 73 | — | 1 |
| `MAPPER79/` | 79 | NINA-006/007 | 15 |
| `MAPPER99/` | 99 | — | 1 |
| `MAPPER105/` | 105 | — | 1 |
| `MAPPER113/` | 113 | — | 3 |
| `MAPPER118/` | 118 | TxSROM | 2 |
| `MAPPER119/` | 119 | — | 2 |
| `MAPPER228/` | 228 | Action 52 | 2 |
| `MAPPER232/` | 232 | — | 5 |

**29 folders, 851 projects.** There is no `MAPPER8/` row: the only mapper-8
project, `Mermaids of Atlantis (U)`, has already been promoted to
`MAPPER8/Mermaids of Atlantis (U)` at the top level and its `_wip/` folder
has been removed (see the note in §1).

A board name in the "—" rows would be a guess, so the folder carries the
number instead. The assignments were spot-checked against known titles:
`MAPPER7/` holds Battletoads and Beetlejuice (AxROM), `MAPPER9/` holds
Punch-Out!! (MMC2), `MAPPER228/` holds Action 52 and Cheetahmen 2,
`MAPPER64/` holds Gyruss and Klax (Camerica), `MAPPER79/` holds Double Strike
(NINA-006/007), and so on.

**`AOROM/` is empty on purpose.** Mapper 2 is the UxROM family, and the
board split is by battery: AOROM is the battery-backed 32 KB board, UNROM the
non-battery one. Not one of the 97 mapper-2 ROMs in the store sets the
battery flag, so all of them are UNROM. `AOROM/` would exist as an empty
placeholder if a battery-backed mapper-2 ROM turns up.

**One project is filed against its header's mapper rather than its real
board.** `1942 (JU)` sits in `_wip/NROM/` even though its header *reads*
mapper 64, because iNES byte 7 is the ASCII text `DiskDude!` — bytes 7
through 15 of that ROM are the string, and `'D'` ($44) in byte 7 is what an
emulator picks up as mapper bits 4-7. The byte 6 upper nybble says 0, so the
intended mapper is 0. Filing it under `MAPPER64/` would record the corruption
as a fact; the six genuine mapper-64 ROMs live in `_wip/MAPPER64/`.

## 3. Build and verification

Every project in this tier verifies at **whole-ROM level**: `make` links the
header, the PRG, the CHR and (where present) the footer, then compares the
result against `rom.nes` byte for byte.

```
$ cd "_wip/MMC3/Battletoads (U)" && make
ca65 -g -o header.o header.s
ca65 -g -o prg.o prg.s
ca65 -g -o chr.o chr.s
ld65 -C linker.cfg -m reconstructed.map -Ln reconstructed.lbl -o reconstructed.nes header.o prg.o chr.o
cmp reconstructed.nes rom.nes
Byte-identical ROM verified.
```

This is a change from the older tier convention, where `_wip` projects ran
`cmp reconstructed_prg.bin prg.bin` and the header and CHR were *not* proven.
The whole-ROM form is what the promoted tier uses, so promoting a project is
now just `git mv` plus the disassembly work — no build surgery.

**The tier is not built by the root `Makefile`'s `all`/`clean`/`<MAPPER>`
targets.** `MAPPERS := NROM AOROM CNROM MMC1 MMC3 MMC5 UNROM MAPPER8` names
only the promoted mapper folders. The tier has its own explicit targets, which
are the only way the root `Makefile` reaches `_wip/`:

```
make wip          # build + verify every _wip/<MAPPER>/<Project>/
make wipclean     # clean the build artifacts in the tier
```

Both targets are driven by `WIP := _wip` at the top of the root `Makefile`.
That variable has to be defined: an empty `$(WIP)` expands the loop to
`for m in /*/`, which walks the **filesystem root** instead of the tier.

The old manual loop still works as an equivalent:
```
for d in _wip/*/*/; do make -C "$d"; done
```

`make wip` is slow (851 sub-make invocations) but it is the tier's
end-to-end check, and it passed clean on 2026-10-21: **851 of 851 projects
built, 0 failures.**

## 4. Two linker layouts

This is the one thing to know before touching a `_wip/` project.

**CPU layout** — the PRG memory area sits at the CPU address the image is
mapped at:

```
MEMORY {
  HEADER: start = $0000, size = $0010, fill = yes;
  PRG:    start = $C000, size = $4000, fill = yes;   # 16 KB NROM-128
  CHR:    start = $0000, size = $2000, fill = yes;
}
```

Used by the projects whose whole PRG really is mapped at one address: the
16 KB NROM-128 games and the 32 KB NROM-256 games (which are contiguous at
`$8000-$FFFF` and so link at `start = $8000, size = $8000`). **36 of the 851
projects** use it — 33 NROM games at `$8000`, 1 at `$C000` (`Circus Charlie`),
plus `MMC1/Wrecking Crew (JUE)` and `MAPPER13/Videomation (U)`. The other 815
use the flat layout below.

**Flat layout** — the memory areas sit at *file offsets* in the `.nes` file,
not at CPU addresses:

```
MEMORY {
  HEADER: start = $0000, size = $0010, fill = yes;
  PRG:    start = $0010, size = $180000, fill = yes;   # 1536 KB PRG
  CHR:    start = $180010, size = $80000, fill = yes;
}
```

Used by everything else, and it is not a workaround — it is the correct
model:

- **A PRG image larger than 32 KB does not fit the 6502's 64 KB address
  space.** Most of this tier is 128 KB or 256 KB of PRG, so a contiguous
  CPU window is impossible. The largest image here is `Action 52 (U) [!]` at
  1.5 MB of PRG and 512 KB of CHR.
- **A banked mapper never presents the whole image at once.** MMC1, MMC3 and
  the rest map the PRG into the CPU in banks, so "the PRG is at `$8000`" is
  not a true statement about the file. The file offsets *are* true.

`NROM/Bomberman (U)` is the repository's precedent for the flat layout, and
`_tools/verify_pass1.py` already has a note about its linker start being a
file offset rather than a CPU address.

The flat layout is also the only one that scales: the same `linker.cfg` shape
works for a 16 KB PRG and for a 1.5 MB one.

Two further rules the layout depends on:

- **ld65 writes the output file in MEMORY *declaration* order, not address
  order.** The areas must be declared in the order the bytes appear in the
  `.nes` file: `HEADER, PRG, CHR, TRAILER`.
- **Memory area sizes are hexadecimal.** `size = $127` is 295 bytes, not 127.

## 5. The states a project can be in

| State | Count | Meaning |
|-------|-------|---------|
| **Pass 0 skeleton** | 851 | `prg.s` is a single `.incbin "prg.bin"`. The folder shape and the build are proven; there is no disassembly yet. |

A Pass 0 project is *not* promotable: `AGENTS.md` requires a real
disassembly (Pass 1 or beyond) before promotion. The skeleton exists so that
the folder shape and the byte-identity contract are settled before the
disassembly work starts.

No project in this tier currently has a real disassembly. `Volleyball (U)`
reached Pass 3 here and moved to `NROM/Volleyball (U)` on 2026-10-21; `Golf (JU)`
and `World Class Track Meet (U)` followed on 2026-10-21, promoted to
`NROM/Golf (JU)/` and `CNROM/World Class Track Meet (U)/` respectively; the root
`README.md` carries their entries.

Three projects have left this tier since the last inventory: `Xevious (U)`
(Pass 1 + Pass 2 + Pass 3, promoted to `NROM/`) and `Zanac (U)` (Pass 1 +
Pass 2 + Pass 3, promoted to `UNROM/`), both on 2026-10-20, and
`Volleyball (U)` (Pass 1 + Pass 2 + Pass 3, promoted to `NROM/`) on
2026-10-21.

## 6. Inventory

All 851 projects, all **byte-identical for the whole ROM**.
### `_wip/CNROM/` — mapper 3 (57 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Adventures of Dino Riki (U) | 32 KB | 32 KB | Vertical | $8093 / $8000 / $808F | Pass 0 skeleton |  |
| Alpha Mission (U) | 32 KB | 32 KB | Horizontal | $815D / $8042 / $8293 | Pass 0 skeleton |  |
| Arkanoid (U) | 32 KB | 16 KB | Horizontal | $80A0 / $8000 / $809B | Pass 0 skeleton |  |
| Arkista's Ring (U) [!] | 32 KB | 32 KB | Horizontal | $8057 / $8004 / $80F2 | Pass 0 skeleton |  |
| Athletic World (U) | 32 KB | 32 KB | Horizontal | $FB74 / $F9F9 / $FFF0 | Pass 0 skeleton |  |
| Back to the Future (U) | 32 KB | 32 KB | Horizontal | $8461 / $8033 / $8464 | Pass 0 skeleton |  |
| Bandai Golf - Challenge Pebble Beach (U) | 32 KB | 32 KB | Vertical | $8436 / $83D3 / $8A77 | Pass 0 skeleton |  |
| Battle Tank (U) | 32 KB | 32 KB | Horizontal | $E00B / $8000 / $F567 | Pass 0 skeleton |  |
| Battleship (U) | 32 KB | 32 KB | Horizontal | $8000 / $8003 / $8006 | Pass 0 skeleton |  |
| Bubble Bath Babes (UE) [!] | 32 KB | 64 KB | Vertical | $804D / $8000 / $8000 | Pass 0 skeleton |  |
| Bump'n'Jump (U) | 32 KB | 32 KB | Horizontal | $81F9 / $8000 / $8000 | Pass 0 skeleton |  |
| Castlequest (U) | 32 KB | 32 KB | Vertical | $C569 / $8225 / $C6B8 | Pass 0 skeleton |  |
| Championship Bowling (U) [!] | 32 KB | 16 KB | Horizontal | $F260 / $F22A / $F22A | Pass 0 skeleton |  |
| City Connection (U) | 32 KB | 32 KB | Vertical | $838D / $D000 / $842E | Pass 0 skeleton |  |
| Dash Galaxy in the Alien Asylum (U) | 32 KB | 32 KB | Vertical | $919B / $90AC / $9295 | Pass 0 skeleton |  |
| Destination Earthstar (U) | 32 KB | 32 KB | Horizontal | $C2A0 / $8000 / $D36F | Pass 0 skeleton |  |
| Firehouse Rescue (U) | 32 KB | 32 KB | Vertical | $C006 / $C000 / $C03E | Pass 0 skeleton |  |
| Friday the 13th (U) | 32 KB | 32 KB | Vertical | $80B7 / $8000 / $815B | Pass 0 skeleton |  |
| Ghostbusters (U) | 32 KB | 32 KB | Horizontal | $8261 / $B104 / $82FA | Pass 0 skeleton |  |
| Gotcha! (U) | 32 KB | 32 KB | Vertical | $B48B / $8000 / $8000 | Pass 0 skeleton |  |
| Gradius (U) | 32 KB | 32 KB | Vertical | $806A / $8010 / $80BD | Pass 0 skeleton |  |
| Hudson's Adventure Island (U) | 32 KB | 32 KB | Vertical | $B706 / $8000 / $B754 | Pass 0 skeleton |  |
| I Can Remember (U) | 32 KB | 32 KB | Vertical | $B711 / $AEBC / $B714 | Pass 0 skeleton |  |
| Jaws (U) [!] | 32 KB | 32 KB | Horizontal | $8A7B / $8100 / $8BB5 | Pass 0 skeleton |  |
| Jaws (U) [a2] | 32 KB | 32 KB | Horizontal | $8A7B / $8100 / $8BB5 | Pass 0 skeleton |  |
| John Elway's Quarterback (U) | 32 KB | 32 KB | Vertical | $8087 / $FF87 / $8087 | Pass 0 skeleton |  |
| Joust (U) | 32 KB | 16 KB | Horizontal | $FEB2 / $FE50 / $FFC1 | Pass 0 skeleton |  |
| Karate Kid, The (U) | 32 KB | 32 KB | Vertical | $8269 / $8000 / $8000 | Pass 0 skeleton |  |
| King's Knight (U) | 32 KB | 32 KB | Horizontal | $BEB3 / $8E52 / $BF36 | Pass 0 skeleton |  |
| Kings of the Beach (U) | 32 KB | 32 KB | Vertical | $FC74 / $FC24 / $FCC9 | Pass 0 skeleton |  |
| Krazy Kreatures (U) [a1] | 32 KB | 32 KB | Vertical | $D929 / $E000 / $D994 | Pass 0 skeleton |  |
| Kung-Fu Heroes (U) | 32 KB | 32 KB | Horizontal | $A742 / $A6D8 / $A6D8 | Pass 0 skeleton |  |
| Last Starfighter, The (U) | 32 KB | 32 KB | Vertical | $8006 / $8081 / $8067 | Pass 0 skeleton |  |
| Legend of Kage, The (U) | 32 KB | 32 KB | Horizontal | $88F9 / $8000 / $88F7 | Pass 0 skeleton |  |
| Major League Baseball (U) | 32 KB | 32 KB | Vertical | $849B / $8000 / $8519 | Pass 0 skeleton |  |
| Major League Baseball (U) [a1] | 32 KB | 32 KB | Vertical | $84A0 / $8000 / $851E | Pass 0 skeleton |  |
| Mighty Bomb Jack (U) | 32 KB | 16 KB | Horizontal | $8073 / $8000 / $8073 | Pass 0 skeleton |  |
| Milon's Secret Castle (U) | 32 KB | 32 KB | Vertical | $819F / $8000 / $FFF9 | Pass 0 skeleton |  |
| Monster Truck Rally (U) | 32 KB | 32 KB | Vertical | $C00B / $B9A7 / $B9A7 | Pass 0 skeleton |  |
| Ninja Kid (U) | 32 KB | 32 KB | Vertical | $8537 / $800A / $8549 | Pass 0 skeleton |  |
| Paperboy (U) | 32 KB | 32 KB | Horizontal | $8006 / $8048 / $8047 | Pass 0 skeleton |  |
| Peek-A-Boo Poker (UE) [!] | 32 KB | 64 KB | Horizontal | $8117 / $80CA / $80CA | Pass 0 skeleton |  |
| Perfect Fit (U) | 32 KB | 32 KB | Vertical | $AC89 / $9100 / $AC8C | Pass 0 skeleton |  |
| Puzznic (U) | 32 KB | 32 KB | Vertical | $8681 / $8000 / $86CF | Pass 0 skeleton |  |
| Pyramid (U) (Sachen-Hacker) | 32 KB | 64 KB | Vertical | $97DA / $8800 / $8800 | Pass 0 skeleton |  |
| Q-bert (U) | 32 KB | 32 KB | Horizontal | $CAF5 / $CA85 / $CB52 | Pass 0 skeleton |  |
| Shooting Range (U) | 32 KB | 32 KB | Vertical | $8894 / $80A0 / $88DC | Pass 0 skeleton |  |
| Solomon's Key (U) [!] | 32 KB | 32 KB | Horizontal | $8000 / $8C00 / $00FF | Pass 0 skeleton |  |
| Spy Hunter (U) | 32 KB | 32 KB | Vertical | $8861 / $8100 / $8100 | Pass 0 skeleton |  |
| Stadium Events (U) | 32 KB | 32 KB | Horizontal | $F843 / $F740 / $FFF0 | Pass 0 skeleton |  |
| Star Force (U) | 32 KB | 32 KB | Vertical | $8003 / $80E0 / $80A2 | Pass 0 skeleton |  |
| Star Soldier (U) | 32 KB | 32 KB | Vertical | $9F7D / $800A / $800A | Pass 0 skeleton |  |
| Star Voyager (U) | 32 KB | 32 KB | Horizontal | $E2B0 / $8322 / $F79B | Pass 0 skeleton |  |
| Super Team Games (U) | 32 KB | 32 KB | Horizontal | $FAA9 / $F977 / $FFF0 | Pass 0 skeleton |  |
| T&C Surf Design (U) | 32 KB | 32 KB | Vertical | $814F / $8001 / $8000 | Pass 0 skeleton |  |
| Tiger-Heli (U) | 32 KB | 32 KB | Horizontal | $80A9 / $8004 / $8004 | Pass 0 skeleton |  |
| Track & Field (U) | 32 KB | 32 KB | Vertical | $806F / $8010 / $80DA | Pass 0 skeleton |  |

### `_wip/MAPPER105/` — mapper 105 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Nintendo World Championships 1990 (U) [!] | 256 KB | none | Horizontal | $FF38 / $FE89 / $6010 | Pass 0 skeleton | battery |

### `_wip/MAPPER11/` — mapper 11 (40 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Adventures of Captain Comic, The (U) | 64 KB | 64 KB | Vertical | $FD7F / $FE9A / $FE96 | Pass 0 skeleton |  |
| Baby Boomer (U) | 64 KB | 16 KB | Vertical | $850E / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Bible Adventures (U) (V1.2) | 64 KB | 64 KB | Vertical | $FFC2 / $FFEA / $FFE9 | Pass 0 skeleton |  |
| Bible Adventures (U) (V1.3) | 64 KB | 64 KB | Vertical | $FFBF / $FFE1 / $FFE0 | Pass 0 skeleton |  |
| Bible Buffet (U) (Ver 6.0) | 128 KB | 128 KB | Vertical | $87D3 / $87C6 / $87E8 | Pass 0 skeleton |  |
| Challenge of the Dragon (U) | 64 KB | 64 KB | Vertical | $FFC7 / $FFE3 / $FFE2 | Pass 0 skeleton |  |
| Chiller (U) [!] | 32 KB | 32 KB | Horizontal | $BA3D / $FFA0 / $BACC | Pass 0 skeleton |  |
| Crystal Mines (U) | 64 KB | 16 KB | Vertical | $FFC7 / $FFB8 / $FFC7 | Pass 0 skeleton |  |
| Death Race (U) | 64 KB | 64 KB | Vertical | $83CF / $8000 / $8444 | Pass 0 skeleton |  |
| Exodus (U) (V4.0) [!] | 128 KB | 128 KB | Vertical | $FFDB / $FFCC / $FFDB | Pass 0 skeleton |  |
| Free Fall (U) (Prototype) [!] | 64 KB | 64 KB | Vertical | $FFBF / $FFE1 / $FFE0 | Pass 0 skeleton |  |
| Galactic Crusader (Sachen) (U) | 32 KB | 32 KB | Horizontal | $D52B / $D2D5 / $D2D5 | Pass 0 skeleton |  |
| Joshua (U) (Ver 5.0 CHR 6.0) | 128 KB | 128 KB | Vertical | $FFAF / $FFA0 / $FFAF | Pass 0 skeleton |  |
| Joshua (U) (Ver 6.0) [!] | 128 KB | 128 KB | Vertical | $FFAF / $FFA0 / $FFAF | Pass 0 skeleton |  |
| King Neptune's Adventure (U) | 64 KB | 64 KB | Vertical | $822C / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| King of Kings, The (U) (V1.1) | 128 KB | 128 KB | Vertical | $FFAE / $FFEA / $FFE9 | Pass 0 skeleton |  |
| King of Kings, The (U) (V1.2) [!] | 128 KB | 128 KB | Vertical | $FFAE / $FFEA / $FFE9 | Pass 0 skeleton |  |
| King of Kings, The (U) (V1.3) | 128 KB | 128 KB | Vertical | $FFB2 / $FFEE / $FFED | Pass 0 skeleton |  |
| King of Kings, The (U) (V5.0 CHR 1.3) | 128 KB | 128 KB | Vertical | $FFB2 / $FFEE / $FFED | Pass 0 skeleton |  |
| Master Chu & The Drunkard Hu (U) | 32 KB | 32 KB | Horizontal | $8080 / $8000 / $8000 | Pass 0 skeleton |  |
| Maxi 15 (U) | 512 KB | 512 KB | Vertical | $FF8A / $FFAC / $FFAB | Pass 0 skeleton |  |
| Maxi 15 (U) [a1] | 512 KB | 512 KB | Vertical | $FF8A / $FFAC / $FFAB | Pass 0 skeleton |  |
| Menace Beach (U) | 64 KB | 64 KB | Vertical | $FFAF / $FFD7 / $FFD6 | Pass 0 skeleton |  |
| Metal Fighter (U) | 32 KB | 32 KB | Horizontal | $80E1 / $8000 / $8000 | Pass 0 skeleton |  |
| Metal Fighter (U) [a1] | 32 KB | 32 KB | Horizontal | $80E1 / $8000 / $8000 | Pass 0 skeleton |  |
| Mission Cobra (U) | 32 KB | 16 KB | Horizontal | $C214 / $C0DC / $C214 | Pass 0 skeleton |  |
| Moon Ranger (U) | 64 KB | 64 KB | Vertical | $851F / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Operation Secret Storm (U) | 64 KB | 64 KB | Vertical | $FFC7 / $FFE3 / $FFE2 | Pass 0 skeleton |  |
| P'radikus Conflict (U) | 64 KB | 64 KB | Vertical | $FDCF / $8000 / $FDCB | Pass 0 skeleton |  |
| Pesterminator (U) | 64 KB | 64 KB | Vertical | $8219 / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Raid 2020 (U) [!] | 64 KB | 32 KB | Vertical | $8236 / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Robodemons (U) | 64 KB | 64 KB | Vertical | $82A9 / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Secret Scout (U) | 64 KB | 64 KB | Vertical | $FFAF / $FFD7 / $FFD6 | Pass 0 skeleton |  |
| Shockwave (U) | 32 KB | 32 KB | Vertical | $8357 / $8000 / $83C1 | Pass 0 skeleton |  |
| Silent Assault (U) | 64 KB | 64 KB | Vertical | $8000 / $F700 / $F700 | Pass 0 skeleton |  |
| Spiritual Warfare (U) (Ver 6.0) | 128 KB | 128 KB | Vertical | $876E / $8761 / $8783 | Pass 0 skeleton |  |
| Spiritual Warfare (U) (Ver 6.1) | 128 KB | 128 KB | Vertical | $876E / $8761 / $8783 | Pass 0 skeleton |  |
| Sunday Funday (U) | 128 KB | 128 KB | Vertical | $FD7A / $FD96 / $FD95 | Pass 0 skeleton |  |
| Tagin' Dragon (U) | 32 KB | 16 KB | Vertical | $A67F / $8000 / $8000 | Pass 0 skeleton |  |
| Wally Bear and the No Gang (U) | 128 KB | none | Vertical | $807C / $8000 / $80AB | Pass 0 skeleton |  |

### `_wip/MAPPER113/` — mapper 113 (3 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Deathbots (U) | 64 KB | 64 KB | Vertical | $FF90 / $FF82 / $FF82 | Pass 0 skeleton |  |
| Rad Racket - Deluxe Tennis 2 (U) [!] | 32 KB | 32 KB | Horizontal | $81B3 / $FF00 / $FF00 | Pass 0 skeleton |  |
| Rad Racket - Deluxe Tennis 2 (U) [a1] | 32 KB | 32 KB | Horizontal | $81B3 / $FF00 / $FF00 | Pass 0 skeleton |  |

### `_wip/MAPPER118/` — mapper 118 (2 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Goal! Two (U) | 128 KB | 128 KB | Vertical | $DFED / $FC6F / $E22B | Pass 0 skeleton |  |
| Pro Sport Hockey (U) | 128 KB | 128 KB | Vertical | $F887 / $FD14 / $FA84 | Pass 0 skeleton |  |

### `_wip/MAPPER119/` — mapper 119 (2 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| High Speed (U) | 128 KB | 128 KB | Horizontal | $FF4F / $FFD6 / $FF82 | Pass 0 skeleton |  |
| Pinbot (U) | 128 KB | 64 KB | Horizontal | $FF09 / $FF8C / $FF38 | Pass 0 skeleton |  |

### `_wip/MAPPER13/` — mapper 13 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Videomation (U) | 32 KB | none | Vertical | $C018 / $FF90 / $C19B | Pass 0 skeleton |  |

### `_wip/MAPPER228/` — mapper 228 (2 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Action 52 (U) [!] | 1536 KB | 512 KB | Vertical | $8006 / $FFD8 / $8006 | Pass 0 skeleton |  |
| Cheetahmen 2 (U) | 256 KB | 128 KB | Horizontal | $800C / $800F / $800C | Pass 0 skeleton |  |

### `_wip/MAPPER232/` — mapper 232 (5 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Quattro Adventure (U) | 256 KB | none | Vertical | $C007 / $C00A / $0000 | Pass 0 skeleton |  |
| Quattro Arcade (U) | 256 KB | none | Vertical | $C007 / $C01A / $FFF9 | Pass 0 skeleton |  |
| Quattro Sports (Aladdin) (U) | 256 KB | none | Vertical | $C007 / $C00A / $C00A | Pass 0 skeleton |  |
| Quattro Sports (U) | 256 KB | none | Vertical | $C007 / $C00A / $C00A | Pass 0 skeleton |  |
| Quattro Sports (V3 Plug-Thru Cart) (U) | 256 KB | none | Vertical | $C007 / $C00A / $C00A | Pass 0 skeleton |  |

### `_wip/MAPPER34/` — mapper 34 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Impossible Mission 2 (U) | 64 KB | 64 KB | Horizontal | $8003 / $8006 / $8009 | Pass 0 skeleton |  |

### `_wip/MAPPER41/` — mapper 41 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Caltron 6-in-1 (U) | 256 KB | 128 KB | Horizontal | $A7B3 / $83F0 / $8400 | Pass 0 skeleton |  |

### `_wip/MAPPER47/` — mapper 47 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Super Spike V'Ball - Nintendo World Cup (U) [!] | 256 KB | 256 KB | Vertical | $FF5B / $FF82 / $E3AF | Pass 0 skeleton |  |

### `_wip/MAPPER64/` — mapper 64 (6 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Donkey Kong Classics (U) | 32 KB | 32 KB | Horizontal | $EE3F / $EDB7 / $EE8C | Pass 0 skeleton |  |
| Gyruss (U) | 32 KB | 32 KB | Horizontal | $8341 / $82D7 / $838C | Pass 0 skeleton |  |
| Klax (U) | 64 KB | 64 KB | Horizontal | $F57E / $FC59 / $E0C4 | Pass 0 skeleton |  |
| Mystery Quest (U) | 32 KB | 32 KB | Horizontal | $8103 / $8000 / $8102 | Pass 0 skeleton |  |
| Shinobi (U) | 128 KB | 128 KB | Horizontal | $E154 / $E000 / $E004 | Pass 0 skeleton |  |
| Skull & Crossbones (U) | 128 KB | 64 KB | Horizontal | $E078 / $E003 / $0014 | Pass 0 skeleton |  |

### `_wip/MAPPER65/` — mapper 65 (27 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Adventures in the Magic Kingdom (U) | 128 KB | 128 KB | Horizontal | $C000 / $FFD8 / $C000 | Pass 0 skeleton |  |
| Adventures in the Magic Kingdom (U) [a1] | 128 KB | 128 KB | Horizontal | $C000 / $FFD8 / $C000 | Pass 0 skeleton |  |
| Bad News Baseball (U) | 128 KB | 128 KB | Horizontal | $C003 / $FFD0 / $FFD8 | Pass 0 skeleton |  |
| Battle Chess (U) | 256 KB | none | Horizontal | $C4EF / $C000 / $C4EE | Pass 0 skeleton |  |
| Battle of Olympus, The (U) | 128 KB | none | Vertical | $D430 / $FFDA / $FFDA | Pass 0 skeleton |  |
| Blaster Master (U) | 128 KB | 128 KB | Horizontal | $EB7E / $FFF4 / $EB97 | Pass 0 skeleton |  |
| Caveman Games (U) | 128 KB | 128 KB | Horizontal | $8006 / $FF50 / $8003 | Pass 0 skeleton |  |
| Circus Caper (U) | 128 KB | 128 KB | Horizontal | $C003 / $FFD0 / $C006 | Pass 0 skeleton |  |
| Cobra Command (U) | 128 KB | 128 KB | Horizontal | $C749 / $C000 / $C7D5 | Pass 0 skeleton |  |
| Demon Sword (U) | 128 KB | 128 KB | Horizontal | $DF2A / $FFC0 / $DFAB | Pass 0 skeleton | four-screen flag |
| Dragon Fighter (U) | 128 KB | 128 KB | Horizontal | $C103 / $C000 / $C000 | Pass 0 skeleton |  |
| Dusty Diamond's All-Star Softball (U) | 128 KB | 128 KB | Vertical | $D4F9 / $C001 / $D707 | Pass 0 skeleton |  |
| Frankenstein - The Monster Returns (U) | 128 KB | 128 KB | Vertical | $C001 / $FFD8 / $C004 | Pass 0 skeleton |  |
| Golf Grand Slam (U) | 128 KB | 128 KB | Horizontal | $C005 / $EFF1 / $C000 | Pass 0 skeleton |  |
| Guerrilla War (U) | 128 KB | 128 KB | Horizontal | $C80D / $C000 / $C86B | Pass 0 skeleton |  |
| Harlem Globetrotters (U) | 128 KB | 128 KB | Horizontal | $C7AF / $BFC5 / $C729 | Pass 0 skeleton |  |
| Ikari 3 - The Rescue (U) | 128 KB | 128 KB | Horizontal | $C048 / $C000 / $C0C4 | Pass 0 skeleton |  |
| Iron Tank (U) | 128 KB | 128 KB | Horizontal | $C21D / $C000 / $C306 | Pass 0 skeleton |  |
| Magic of Scheherazade, The (U) | 128 KB | 128 KB | Vertical | $E3C9 / $E19B / $E19B | Pass 0 skeleton |  |
| Monster Party (U) | 128 KB | 128 KB | Horizontal | $C1F3 / $FFD8 / $C0C0 | Pass 0 skeleton |  |
| Muppet Adventure - Chaos at the Carnival (U) | 128 KB | none | Vertical | $D02A / $FFE0 / $D02A | Pass 0 skeleton | four-screen flag |
| Peter Pan & The Pirates (U) | 128 KB | 128 KB | Horizontal | $D577 / $C000 / $D7F3 | Pass 0 skeleton |  |
| RoadBlasters (U) | 128 KB | 128 KB | Horizontal | $D9E8 / $CE7E / $DA4A | Pass 0 skeleton | four-screen flag |
| Sesame Street ABC (U) [a1] | 128 KB | 128 KB | Horizontal | $94C6 / $EC53 / $9372 | Pass 0 skeleton |  |
| Sesame Street ABC (U) [a2] | 128 KB | 128 KB | Horizontal | $94C6 / $EC53 / $9372 | Pass 0 skeleton |  |
| Ski or Die (U) | 128 KB | 128 KB | Horizontal | $E43B / $FFEA / $E48E | Pass 0 skeleton |  |
| Willow (U) | 128 KB | 128 KB | Horizontal | $C080 / $FFE8 / $FFE8 | Pass 0 skeleton | battery |

### `_wip/MAPPER66/` — mapper 66 (18 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Black Bass USA, The (U) | 128 KB | none | Horizontal | $F6D0 / $F67A / $F67A | Pass 0 skeleton |  |
| Conan (U) | 128 KB | none | Horizontal | $CAA6 / $CAFB / $CAE2 | Pass 0 skeleton |  |
| Dragon Power (U) | 128 KB | 32 KB | Vertical | $FB07 / $FF88 / $FB0A | Pass 0 skeleton |  |
| Dragon's Lair (U) | 128 KB | none | Vertical | $EB2B / $D4D8 / $F3BC | Pass 0 skeleton |  |
| Gilligan's Island (U) | 128 KB | none | Horizontal | $FAF3 / $F9C7 / $C0C0 | Pass 0 skeleton |  |
| Gumshoe (UE) | 128 KB | 32 KB | Vertical | $8047 / $E700 / $807C | Pass 0 skeleton |  |
| Jackal (U) | 128 KB | none | Vertical | $C292 / $C23D / $C2EA | Pass 0 skeleton |  |
| Kid Kool (U) | 128 KB | none | Vertical | $C154 / $C000 / $C154 | Pass 0 skeleton |  |
| Legendary Wings (U) | 128 KB | none | Vertical | $C19D / $C100 / $C100 | Pass 0 skeleton |  |
| Little Mermaid, The (U) | 128 KB | none | Vertical | $C000 / $FEC0 / $C000 | Pass 0 skeleton |  |
| Loopz (U) | 128 KB | none | Horizontal | $C55C / $C000 / $C5B4 | Pass 0 skeleton |  |
| Mega Man (U) | 128 KB | none | Vertical | $D4A8 / $C008 / $C008 | Pass 0 skeleton |  |
| NFL Football (U) | 128 KB | none | Vertical | $C177 / $C001 / $C000 | Pass 0 skeleton |  |
| Rush'n Attack (U) | 128 KB | none | Vertical | $C074 / $C008 / $C0C2 | Pass 0 skeleton |  |
| Side Pocket (U) | 128 KB | none | Horizontal | $CE70 / $CDF9 / $CDF9 | Pass 0 skeleton | battery |
| Skate or Die! (U) | 128 KB | none | Vertical | $C072 / $C001 / $C0E2 | Pass 0 skeleton |  |
| Super Mario Bros - Duck Hunt (U) | 64 KB | 16 KB | Vertical | $C086 / $8000 / $C000 | Pass 0 skeleton |  |
| Thunder & Lightning (U) | 128 KB | 32 KB | Vertical | $FFCA / $FF50 / $FFCD | Pass 0 skeleton |  |

### `_wip/MAPPER67/` — mapper 67 (7 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Cybernoid - The Fighting Machine (U) | 32 KB | 32 KB | Vertical | $8003 / $8000 / $0000 | Pass 0 skeleton |  |
| Jaws (U) [a1] | 32 KB | 32 KB | Horizontal | $8A7B / $8100 / $8BB5 | Pass 0 skeleton |  |
| Karate Champ (U) | 32 KB | 32 KB | Horizontal | $82BB / $8033 / $8033 | Pass 0 skeleton |  |
| Mickey Mousecapade (U) | 32 KB | 32 KB | Vertical | $8003 / $8000 / $8078 | Pass 0 skeleton |  |
| Puzzle (U) [a1] | 32 KB | 32 KB | Horizontal | $F86E / $8000 / $8000 | Pass 0 skeleton |  |
| Puzzle (U) [a2] | 32 KB | 32 KB | Horizontal | $F86E / $8000 / $8000 | Pass 0 skeleton |  |
| Puzzle (U) [a3] | 32 KB | 32 KB | Horizontal | $F86E / $8000 / $8000 | Pass 0 skeleton |  |

### `_wip/MAPPER68/` — mapper 68 (4 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| After Burner (U) | 128 KB | 256 KB | Horizontal | $E596 / $DB25 / $DB25 | Pass 0 skeleton |  |
| Crystalis (U) [a2] | 256 KB | 128 KB | Horizontal | $F3B6 / $F2A4 / $F443 | Pass 0 skeleton | battery |
| Shadowgate (U) | 128 KB | 128 KB | Horizontal | $ECA3 / $E800 / $EB49 | Pass 0 skeleton | battery |
| Startropics (U) | 256 KB | 256 KB | Vertical | $FFAD / $FFA0 / $FFB5 | Pass 0 skeleton |  |

### `_wip/MAPPER69/` — mapper 69 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Batman - Return of the Joker (U) | 128 KB | 256 KB | Horizontal | $E1D0 / $E2E6 / $E2A9 | Pass 0 skeleton |  |

### `_wip/MAPPER7/` — mapper 7 (39 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Arch Rivals (U) | 128 KB | none | Horizontal | $8095 / $FFDC / $8367 | Pass 0 skeleton |  |
| Battletoads (U) | 256 KB | none | Horizontal | $FF98 / $FFF2 / $FF3F | Pass 0 skeleton |  |
| Battletoads Double Dragon (U) | 256 KB | none | Horizontal | $FF98 / $FFF2 / $FF72 | Pass 0 skeleton |  |
| Beetlejuice (U) [!] | 128 KB | none | Horizontal | $FFEE / $FFE6 / $FFAC | Pass 0 skeleton |  |
| Cabal (U) | 128 KB | none | Horizontal | $FFDE / $FFEE / $FF53 | Pass 0 skeleton |  |
| Cabal (U) [a1] | 128 KB | none | Horizontal | $FFDE / $FFEE / $FF53 | Pass 0 skeleton |  |
| Caesar's Palace (U) | 256 KB | none | Horizontal | $C000 / $FFB2 / $FFB2 | Pass 0 skeleton |  |
| Captain SkyHawk (U) | 128 KB | none | Horizontal | $FFF9 / $FFEE / $FFF9 | Pass 0 skeleton |  |
| Castle of Deceit (U) | 64 KB | 64 KB | Horizontal | $82A9 / $FFE8 / $FFE8 | Pass 0 skeleton |  |
| Classic Concentration (U) | 256 KB | none | Horizontal | $C85D / $C854 / $C85C | Pass 0 skeleton |  |
| Cobra Triangle (U) | 128 KB | none | Horizontal | $FE1A / $FF90 / $FFF2 | Pass 0 skeleton |  |
| Danny Sullivan's Indy Heat (U) | 128 KB | none | Horizontal | $FB06 / $FFF0 / $FB2B | Pass 0 skeleton |  |
| Deadly Towers (U) | 128 KB | none | Horizontal | $FD61 / $FCFA / $FCFA | Pass 0 skeleton |  |
| Deathbots (U) [a1] | 64 KB | 64 KB | Horizontal | $FF90 / $FF82 / $FF82 | Pass 0 skeleton |  |
| Digger - The Legend of the Lost City (U) | 128 KB | none | Horizontal | $8020 / $8018 / $8018 | Pass 0 skeleton |  |
| Double Dare (U) | 256 KB | none | Horizontal | $8006 / $FFF0 / $805A | Pass 0 skeleton |  |
| Hollywood Squares (U) | 256 KB | none | Horizontal | $D545 / $C1A0 / $FFF9 | Pass 0 skeleton |  |
| Ironsword - Wizards & Warriors 2 (U) | 256 KB | none | Horizontal | $FFDD / $FF91 / $DA2F | Pass 0 skeleton |  |
| Ivan Ironman Stewart's Super Offroad (U) | 128 KB | none | Vertical | $FFEC / $FFE4 / $FFBD | Pass 0 skeleton |  |
| Jeopardy! (U) | 128 KB | none | Horizontal | $FE6F / $FF94 / $FE7E | Pass 0 skeleton |  |
| Jeopardy! 25th Anniversary Edition (U) | 128 KB | none | Horizontal | $FE85 / $FF94 / $FE94 | Pass 0 skeleton |  |
| Jeopardy! Junior Edition (U) | 128 KB | none | Horizontal | $E4B1 / $FF94 / $E4C0 | Pass 0 skeleton |  |
| Marble Madness (U) | 128 KB | none | Vertical | $FF9C / $FFC4 / $FFC3 | Pass 0 skeleton |  |
| NARC (U) | 128 KB | none | Horizontal | $8177 / $FFED / $8668 | Pass 0 skeleton |  |
| Nightmare On Elm Street, A (U) | 128 KB | none | Horizontal | $FEB0 / $FFF0 / $FEDC | Pass 0 skeleton |  |
| RC Pro-Am 2 (U) | 256 KB | none | Horizontal | $FF89 / $FF80 / $FF80 | Pass 0 skeleton |  |
| Solar Jetman - Hunt for the Golden Warpship (U) | 256 KB | none | Horizontal | $FFE3 / $FF88 / $FF78 | Pass 0 skeleton |  |
| Solstice (U) | 128 KB | none | Horizontal | $07FD / $FE00 / $FE26 | Pass 0 skeleton |  |
| Time Lord (U) | 128 KB | none | Horizontal | $FF68 / $8025 / $FF30 | Pass 0 skeleton |  |
| WWF Wrestlemania (U) | 128 KB | none | Horizontal | $F1B6 / $FF22 / $F1B6 | Pass 0 skeleton |  |
| Wheel of Fortune (U) | 128 KB | none | Horizontal | $FC3B / $FF90 / $FC51 | Pass 0 skeleton |  |
| Wheel of Fortune - Starring Vanna White (U) | 128 KB | none | Horizontal | $8472 / $FF95 / $FFA4 | Pass 0 skeleton |  |
| Wheel of Fortune Family Edition (U) | 128 KB | none | Horizontal | $FC48 / $FF90 / $FC5E | Pass 0 skeleton |  |
| Wheel of Fortune Junior Edition (U) | 128 KB | none | Horizontal | $FC48 / $FF90 / $FC5E | Pass 0 skeleton |  |
| Who Framed Roger Rabbit (U) | 128 KB | none | Horizontal | $FFB4 / $FFF2 / $FFC3 | Pass 0 skeleton |  |
| Who Framed Roger Rabbit (U) [a1] | 128 KB | none | Horizontal | $FFB4 / $FFF2 / $FFC3 | Pass 0 skeleton |  |
| Wizards & Warriors (U) | 128 KB | none | Horizontal | $FF86 / $FFAF / $FFB7 | Pass 0 skeleton |  |
| Wizards & Warriors 3 (U) | 256 KB | none | Horizontal | $FFDC / $FF75 / $FEE7 | Pass 0 skeleton |  |
| World Games (U) | 128 KB | none | Horizontal | $07FD / $FF00 / $FFB4 | Pass 0 skeleton |  |

### `_wip/MAPPER71/` — mapper 71 (12 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Bee 52 (U) | 64 KB | none | Vertical | $CA53 / $C007 / $CC55 | Pass 0 skeleton |  |
| Big Nose Freaks Out (Aladdin) (U) | 256 KB | none | Vertical | $C161 / $C20B / $C10A | Pass 0 skeleton |  |
| Big Nose Freaks Out (U) | 256 KB | none | Vertical | $C161 / $C20B / $C10A | Pass 0 skeleton |  |
| Big Nose the Caveman (U) | 256 KB | none | Vertical | $C028 / $C004 / $0000 | Pass 0 skeleton |  |
| Dizzy The Adventurer (Aladdin) (U) | 128 KB | none | Vertical | $C007 / $C02D / $FFF9 | Pass 0 skeleton |  |
| Fantastic Adventures of Dizzy, The (U) | 256 KB | none | Vertical | $D1A2 / $EC50 / $C378 | Pass 0 skeleton |  |
| Fire Hawk (U) | 128 KB | none | Horizontal | $C301 / $C0A0 / $C492 | Pass 0 skeleton |  |
| Linus Spacehead's Cosmic Crusade (Aladdin) (U) | 256 KB | none | Vertical | $C007 / $C01A / $0000 | Pass 0 skeleton |  |
| Micro Machines (Aladdin) (UE) | 256 KB | none | Vertical | $0300 / $F6B0 / $0000 | Pass 0 skeleton |  |
| Mig-29 Soviet Fighter (U) | 128 KB | none | Vertical | $C8C9 / $C090 / $C18B | Pass 0 skeleton |  |
| Solstice (U) [a1] | 128 KB | none | Horizontal | $07FD / $FE00 / $FE26 | Pass 0 skeleton |  |
| Stunt Kids (U) | 128 KB | none | Vertical | $D6CE / $C004 / $C004 | Pass 0 skeleton |  |

### `_wip/MAPPER73/` — mapper 73 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Punch-Out!! (U) | 128 KB | 128 KB | Vertical | $A008 / $A000 / $A000 | Pass 0 skeleton | four-screen flag |

### `_wip/MAPPER79/` — mapper 79 (15 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Blackjack (U) | 32 KB | 64 KB | Vertical | $FF1A / $F000 / $F000 | Pass 0 skeleton |  |
| Double Strike (U) (V1.0) | 32 KB | 32 KB | Vertical | $B081 / $FF00 / $B081 | Pass 0 skeleton |  |
| Double Strike (U) (V1.1) | 32 KB | 32 KB | Vertical | $B081 / $FF00 / $B081 | Pass 0 skeleton |  |
| Dudes With Attitude (U) | 32 KB | 32 KB | Vertical | $07FD / $8000 / $FFF9 | Pass 0 skeleton |  |
| F-15 City War (U) | 32 KB | 32 KB | Horizontal | $F831 / $FFC0 / $8000 | Pass 0 skeleton |  |
| F-15 City War (U) [a1] | 32 KB | 32 KB | Vertical | $F831 / $FFC0 / $8000 | Pass 0 skeleton |  |
| Fire Hawk (U) [a1] | 128 KB | 128 KB | Horizontal | $0000 / $0100 / $92A0 | Pass 0 skeleton |  |
| Krazy Kreatures (U) | 32 KB | 32 KB | Vertical | $D929 / $FE00 / $D994 | Pass 0 skeleton |  |
| Puzzle (U) | 32 KB | 32 KB | Horizontal | $CDB6 / $D4A4 / $CCAB | Pass 0 skeleton |  |
| Solitaire (U) | 32 KB | 32 KB | Vertical | $FF8E / $FF09 / $FF09 | Pass 0 skeleton |  |
| Tiles of Fate (U) | 32 KB | 32 KB | Vertical | $80CF / $8000 / $8000 | Pass 0 skeleton |  |
| Trolls on Treasure Island (U) | 32 KB | 32 KB | Vertical | $07FD / $FF72 / $FFF9 | Pass 0 skeleton |  |
| Trolls on Treasure Island (U) [a1] | 32 KB | 32 KB | Vertical | $07FD / $FF72 / $FFF9 | Pass 0 skeleton |  |
| Ultimate League Soccer (U) | 32 KB | 64 KB | Horizontal | $8028 / $8002 / $8002 | Pass 0 skeleton |  |
| Venice Beach Volleyball (U) | 32 KB | 32 KB | Vertical | $8090 / $8001 / $8001 | Pass 0 skeleton |  |

### `_wip/MAPPER9/` — mapper 9 (2 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Mike Tyson's Punch-Out!! (U) (PRG 0) | 128 KB | 128 KB | Horizontal | $A008 / $A000 / $A000 | Pass 0 skeleton |  |
| Mike Tyson's Punch-Out!! (U) (PRG 1) | 128 KB | 128 KB | Horizontal | $A008 / $A000 / $A000 | Pass 0 skeleton |  |

### `_wip/MAPPER99/` — mapper 99 (1 project)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Hot Slot (UE) | 32 KB | 64 KB | Horizontal | $809C / $8000 / $8000 | Pass 0 skeleton |  |

### `_wip/MMC1/` — mapper 1 (221 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| 720 (U) | 128 KB | none | Vertical | $C372 / $C000 / $E898 | Pass 0 skeleton |  |
| AD&D Heroes of the Lance (U) | 128 KB | 128 KB | Horizontal | $C06B / $C000 / $C063 | Pass 0 skeleton | battery |
| AD&D Hillsfar (U) [!] | 256 KB | none | Horizontal | $C003 / $FFD8 / $FFD8 | Pass 0 skeleton | battery |
| Abadox (U) | 128 KB | 128 KB | Horizontal | $C47B / $FFB0 / $C58C | Pass 0 skeleton |  |
| Addams Family - Pugsley's Scavenger Hunt, The (U) | 128 KB | 128 KB | Horizontal | $C303 / $FF80 / $C36C | Pass 0 skeleton |  |
| Addams Family, The (U) | 128 KB | 128 KB | Horizontal | $0104 / $C000 / $0314 | Pass 0 skeleton |  |
| Adventures of Bayou Billy, The (U) | 128 KB | 128 KB | Horizontal | $DC1A / $FFF2 / $DCD2 | Pass 0 skeleton |  |
| Adventures of Lolo (U) [!] | 32 KB | 32 KB | Horizontal | $DC88 / $C000 / $DD04 | Pass 0 skeleton |  |
| Adventures of Lolo 3 (U) | 128 KB | 128 KB | Horizontal | $D677 / $FFF0 / $D6E4 | Pass 0 skeleton |  |
| Adventures of Rad Gravity, The (U) | 128 KB | 128 KB | Horizontal | $C000 / $C0EF / $C0EF | Pass 0 skeleton |  |
| Adventures of Tom Sawyer (U) | 128 KB | 128 KB | Horizontal | $F89F / $FFD0 / $B1D1 | Pass 0 skeleton |  |
| Air Fortress (U) | 128 KB | 32 KB | Horizontal | $D1C8 / $C000 / $C0BA | Pass 0 skeleton |  |
| Airwolf (U) | 32 KB | 128 KB | Horizontal | $CC2C / $CBC3 / $CC39 | Pass 0 skeleton |  |
| Al Unser Jr Turbo Racing (U) | 128 KB | 128 KB | Vertical | $E9E4 / $FF80 / $EA26 | Pass 0 skeleton |  |
| Al Unser Jr Turbo Racing (U) [a1] | 128 KB | 128 KB | Vertical | $E9E4 / $FF80 / $EA26 | Pass 0 skeleton |  |
| Al Unser Jr Turbo Racing (U) [a2] | 128 KB | 128 KB | Vertical | $E9E4 / $FF80 / $EA26 | Pass 0 skeleton |  |
| All-Pro Basketball (U) | 128 KB | 128 KB | Vertical | $C26C / $FFD0 / $C2AD | Pass 0 skeleton |  |
| American Gladiators (U) | 128 KB | 128 KB | Horizontal | $E400 / $FFF1 / $E46E | Pass 0 skeleton |  |
| Anticipation (U) | 32 KB | 32 KB | Horizontal | $DEE5 / $FFDD / $DF24 | Pass 0 skeleton |  |
| Attack of the Killer Tomatoes (U) | 128 KB | 128 KB | Horizontal | $CF63 / $FFF1 / $CFC4 | Pass 0 skeleton |  |
| Back to the Future 2 & 3 (U) | 128 KB | 128 KB | Vertical | $C788 / $C000 / $C787 | Pass 0 skeleton | four-screen flag |
| Bad Street Brawler (U) | 128 KB | none | Vertical | $FA50 / $CF4C / $FB49 | Pass 0 skeleton |  |
| Barbie (U) (Rev 3) | 128 KB | 128 KB | Horizontal | $CCD0 / $FFF1 / $CD19 | Pass 0 skeleton |  |
| Barbie (U) (Rev X) | 128 KB | 128 KB | Horizontal | $CCCE / $FFF1 / $CD17 | Pass 0 skeleton |  |
| Bard's Tale - Tales of the Unknown, The (U) [!] | 128 KB | none | Horizontal | $C350 / $C000 / $C000 | Pass 0 skeleton | battery |
| Barker Bill's Trick Shooting (U) | 64 KB | 128 KB | Horizontal | $C4EB / $C000 / $C000 | Pass 0 skeleton |  |
| Baseball Simulator 1.000 (U) | 128 KB | 128 KB | Vertical | $F098 / $E600 / $F087 | Pass 0 skeleton | battery |
| Baseball Stars (U) | 128 KB | 128 KB | Horizontal | $CFB3 / $CC69 / $D026 | Pass 0 skeleton | battery |
| Bases Loaded (U) | 256 KB | 64 KB | Horizontal | $8359 / $FFB0 / $83A6 | Pass 0 skeleton |  |
| Bases Loaded 2 (U) | 256 KB | 128 KB | Horizontal | $85F0 / $8001 / $8694 | Pass 0 skeleton |  |
| Big Bird's Hide and Speak (U) | 256 KB | 128 KB | Horizontal | $DDC7 / $DE57 / $DE34 | Pass 0 skeleton |  |
| Bigfoot (U) | 128 KB | 128 KB | Horizontal | $F256 / $EC8F / $F259 | Pass 0 skeleton |  |
| Bill & Ted's Excellent Video Game Adventure (U) | 128 KB | 128 KB | Horizontal | $FFEE / $FFE0 / $FFF1 | Pass 0 skeleton |  |
| Bionic Commando (U) | 256 KB | none | Vertical | $C058 / $FFE0 / $C0B2 | Pass 0 skeleton |  |
| Blaster Master (U) (Prototype) | 128 KB | 128 KB | Vertical | $EB75 / $FFF4 / $EB8E | Pass 0 skeleton |  |
| Bomberman 2 (U) | 128 KB | none | Horizontal | $C01D / $C003 / $C0AB | Pass 0 skeleton |  |
| Boulder Dash (U) | 32 KB | 32 KB | Horizontal | $A2C7 / $FF80 / $A2F3 | Pass 0 skeleton |  |
| Boy and His Blob - Trouble on Blobolonia, A (U) | 128 KB | 128 KB | Horizontal | $C86F / $FFBF / $C8D2 | Pass 0 skeleton |  |
| Break Time (U) | 128 KB | 32 KB | Horizontal | $C571 / $8000 / $C5EE | Pass 0 skeleton |  |
| Breakthru (U) | 128 KB | 128 KB | Horizontal | $C58F / $C000 / $C000 | Pass 0 skeleton |  |
| Bubble Bobble (U) | 128 KB | 32 KB | Horizontal | $CE07 / $E882 / $CE61 | Pass 0 skeleton |  |
| Bugs Bunny Crazy Castle, The (U) | 64 KB | 32 KB | Horizontal | $EF95 / $EC00 / $EE71 | Pass 0 skeleton |  |
| Bugs Bunny Fun House (Prototype) (U) | 128 KB | 128 KB | Horizontal | $EF95 / $EC00 / $EE71 | Pass 0 skeleton |  |
| Castlevania 2 - Simon's Quest (U) | 128 KB | 128 KB | Horizontal | $C046 / $FFD0 / $C096 | Pass 0 skeleton |  |
| Chessmaster, The (U) | 128 KB | 32 KB | Horizontal | $07FD / $C000 / $C134 | Pass 0 skeleton |  |
| Chip 'n Dale Rescue Rangers (U) [!] | 128 KB | 128 KB | Horizontal | $C000 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Chip 'n Dale Rescue Rangers 2 (U) | 128 KB | 128 KB | Horizontal | $C003 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Clash At Demonhead (U) | 128 KB | 128 KB | Horizontal | $FF00 / $C100 / $FF00 | Pass 0 skeleton |  |
| Clash At Demonhead (U) [a1] | 128 KB | 128 KB | Horizontal | $FF00 / $C100 / $FF00 | Pass 0 skeleton |  |
| Conflict (U) [!] | 128 KB | 128 KB | Horizontal | $C01B / $C000 / $C01B | Pass 0 skeleton |  |
| Cool World (U) | 128 KB | 128 KB | Horizontal | $0104 / $C000 / $0314 | Pass 0 skeleton |  |
| Dance Aerobics (U) | 64 KB | 32 KB | Horizontal | $FC76 / $FFD8 / $C0C0 | Pass 0 skeleton |  |
| Darkman (U) | 128 KB | 128 KB | Horizontal | $F5DC / $FF60 / $F633 | Pass 0 skeleton |  |
| Darkwing Duck (U) | 128 KB | 128 KB | Vertical | $C000 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Darkwing Duck (U) (Prototype) | 128 KB | 128 KB | Vertical | $C000 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Day Dreamin' Davey (U) | 256 KB | 128 KB | Horizontal | $C009 / $BFB0 / $FFDB | Pass 0 skeleton |  |
| Defender of the Crown (U) | 256 KB | none | Vertical | $C0C9 / $C000 / $C0DF | Pass 0 skeleton |  |
| Desert Commander (U) | 128 KB | 128 KB | Horizontal | $E8E9 / $FFED / $F74E | Pass 0 skeleton |  |
| Destiny of an Emperor (U) | 256 KB | none | Horizontal | $EE79 / $FFD8 / $EE79 | Pass 0 skeleton | battery |
| Die Hard (U) | 128 KB | 128 KB | Horizontal | $C207 / $C000 / $C2E4 | Pass 0 skeleton |  |
| Double Dragon (U) | 128 KB | 128 KB | Vertical | $FF16 / $FFE8 / $E165 | Pass 0 skeleton |  |
| Dr Jekyll and Mr Hyde (U) | 128 KB | 32 KB | Horizontal | $D0FF / $D066 / $D257 | Pass 0 skeleton |  |
| Dr Mario (JU) | 32 KB | 32 KB | Horizontal | $8005 / $FF00 / $8035 | Pass 0 skeleton |  |
| Dr Mario (JU) [a1] | 32 KB | 32 KB | Horizontal | $8005 / $FF00 / $8035 | Pass 0 skeleton |  |
| Dr Mario (JU) [a2] | 32 KB | 48 KB | Horizontal | $8005 / $FF00 / $8035 | Pass 0 skeleton |  |
| Drac's Night Out (Prototype) (U) [!] | 128 KB | 128 KB | Horizontal | $C06A / $C000 / $C099 | Pass 0 skeleton |  |
| Dragon Warrior (U) (PRG 0) | 64 KB | 16 KB | Horizontal | $FE67 / $FFD8 / $FD3A | Pass 0 skeleton | battery |
| Dragon Warrior (U) (PRG 1) | 64 KB | 16 KB | Horizontal | $FE67 / $FFD8 / $FD3A | Pass 0 skeleton | battery |
| Dragon Warrior 2 (U) | 256 KB | none | Horizontal | $C000 / $FFD7 / $C5AB | Pass 0 skeleton | battery |
| Dragon Warrior 3 (U) | 512 KB | none | Horizontal | $C96C / $FFD8 / $E864 | Pass 0 skeleton | battery |
| Dragon Warrior 4 (U) | 512 KB | none | Horizontal | $0502 / $FFD8 / $C408 | Pass 0 skeleton | battery |
| Dungeon Magic - Sword of the Elements (U) | 128 KB | 128 KB | Vertical | $C0BE / $C000 / $C000 | Pass 0 skeleton | battery |
| Dynowarz - Destruction of Spondylus (U) | 128 KB | 128 KB | Horizontal | $C982 / $C05B / $C981 | Pass 0 skeleton |  |
| Eliminator Boat Duel (U) | 128 KB | 128 KB | Horizontal | $C003 / $FFBC / $C003 | Pass 0 skeleton |  |
| Evert & Lendl Top Player's Tennis (U) | 128 KB | 128 KB | Horizontal | $F918 / $FFBE / $F9E5 | Pass 0 skeleton |  |
| Family Feud (U) | 32 KB | 128 KB | Horizontal | $CA5E / $D136 / $CAC3 | Pass 0 skeleton |  |
| Faria (U) | 128 KB | 128 KB | Horizontal | $CF35 / $FFD0 / $FFD0 | Pass 0 skeleton | battery |
| Faxanadu (U) | 256 KB | none | Vertical | $C999 / $C913 / $C9D5 | Pass 0 skeleton |  |
| Ferrari - Grand Prix Challenge (U) [!] | 128 KB | 128 KB | Horizontal | $0104 / $C000 / $0314 | Pass 0 skeleton |  |
| Fester's Quest (U) | 128 KB | 128 KB | Horizontal | $C364 / $FFF3 / $FFF3 | Pass 0 skeleton |  |
| Fester's Quest (U) (Prototype) | 128 KB | 128 KB | Vertical | $C36A / $FFF3 / $FFF3 | Pass 0 skeleton |  |
| Final Fantasy (U) | 256 KB | none | Horizontal | $FE9C / $FE2E / $FEBB | Pass 0 skeleton | battery |
| Final Fantasy (U) [a1] | 256 KB | none | Vertical | $FE9C / $FE2E / $FEBB | Pass 0 skeleton | battery |
| Flying Warriors (U) | 128 KB | 128 KB | Horizontal | $F4CD / $F436 / $F462 | Pass 0 skeleton |  |
| Formula One Built To Win (U) [!] | 128 KB | 128 KB | Horizontal | $F853 / $FFD5 / $FFFF | Pass 0 skeleton | battery |
| Freedom Force (U) [!] | 128 KB | 128 KB | Horizontal | $F08B / $FFF3 / $FFF3 | Pass 0 skeleton |  |
| Genghis Khan (U) | 256 KB | none | Horizontal | $C0D9 / $C000 / $C14B | Pass 0 skeleton |  |
| Ghostbusters 2 (U) | 128 KB | 128 KB | Horizontal | $FEF0 / $8000 / $FFF5 | Pass 0 skeleton |  |
| Ghoul School (U) | 128 KB | 128 KB | Vertical | $C2B9 / $FFF1 / $C324 | Pass 0 skeleton | four-screen flag |
| Goal! (U) | 256 KB | 128 KB | Horizontal | $07FD / $FFB9 / $FFDF | Pass 0 skeleton |  |
| Godzilla - Monster of Monsters! (U) | 128 KB | 128 KB | Horizontal | $C003 / $C000 / $C006 | Pass 0 skeleton |  |
| Godzilla 2 - War of the Monsters (U) | 128 KB | 128 KB | Horizontal | $FA00 / $FFF0 / $FFF0 | Pass 0 skeleton |  |
| Golgo 13 - Top Secret Episode (U) | 128 KB | 128 KB | Horizontal | $C081 / $C000 / $C081 | Pass 0 skeleton |  |
| Great Waldo Search, The (U) | 128 KB | 128 KB | Horizontal | $EC31 / $FF40 / $ED24 | Pass 0 skeleton |  |
| Greg Norman's Golf Power (U) | 128 KB | none | Horizontal | $E155 / $FFF3 / $E398 | Pass 0 skeleton | battery |
| Hatris (U) | 128 KB | none | Horizontal | $C20B / $C000 / $C292 | Pass 0 skeleton |  |
| Heavy Shreddin' (U) | 128 KB | 128 KB | Horizontal | $8003 / $FFCB / $82FF | Pass 0 skeleton |  |
| Hook (U) | 128 KB | 128 KB | Horizontal | $E09B / $FF64 / $E106 | Pass 0 skeleton |  |
| Hoops (U) | 128 KB | 128 KB | Horizontal | $E13C / $FFD0 / $E17D | Pass 0 skeleton |  |
| Hudson Hawk (U) | 128 KB | 128 KB | Horizontal | $C010 / $FE52 / $C013 | Pass 0 skeleton |  |
| Ikari Warriors 2 - Victory Road (U) | 256 KB | none | Horizontal | $C000 / $FF40 / $51DF | Pass 0 skeleton |  |
| Indiana Jones and the Last Crusade (Taito) (U) | 256 KB | none | Horizontal | $07FD / $FF00 / $FFF9 | Pass 0 skeleton |  |
| Journey to Silius (U) | 128 KB | 128 KB | Horizontal | $C151 / $FFF3 / $FFF3 | Pass 0 skeleton |  |
| Kid Icarus (UE) | 128 KB | none | Vertical | $C866 / $FF80 / $FFCC | Pass 0 skeleton |  |
| Kid Niki - Radical Ninja (U) (PRG 0) | 256 KB | none | Horizontal | $8020 / $FFCE / $FFCE | Pass 0 skeleton |  |
| Kid Niki - Radical Ninja (U) (PRG 1) [!] | 256 KB | none | Vertical | $8020 / $FFC8 / $FFC8 | Pass 0 skeleton |  |
| Knight Rider (U) | 64 KB | 128 KB | Horizontal | $D362 / $C6EC / $FEFE | Pass 0 skeleton |  |
| Lee Trevino's Fighting Golf (U) | 128 KB | 128 KB | Horizontal | $C079 / $C000 / $C0B7 | Pass 0 skeleton |  |
| Legend of Zelda, The (U) (PRG 0) | 128 KB | none | Horizontal | $E484 / $FF50 / $FFF0 | Pass 0 skeleton | battery |
| Legend of Zelda, The (U) (PRG 1) | 128 KB | none | Horizontal | $E484 / $FF50 / $FFF0 | Pass 0 skeleton | battery |
| Legend of the Ghost Lion (U) | 128 KB | 128 KB | Horizontal | $FFEA / $FFED / $FFE9 | Pass 0 skeleton | battery |
| Lemmings (U) | 128 KB | 128 KB | Horizontal | $0100 / $FEA0 / $0103 | Pass 0 skeleton |  |
| Lethal Weapon (U) | 128 KB | 128 KB | Horizontal | $FB46 / $FFF3 / $CA48 | Pass 0 skeleton |  |
| Little League Baseball - Championship Series (U) | 128 KB | 128 KB | Horizontal | $CD85 / $CBD5 / $CDF4 | Pass 0 skeleton |  |
| M.U.L.E. (U) | 128 KB | none | Vertical | $CE50 / $CEB6 / $CE9D | Pass 0 skeleton |  |
| Magic Darts (U) | 128 KB | 128 KB | Horizontal | $FFCB / $FF8A / $FFCE | Pass 0 skeleton |  |
| Magic Johnson's Fast Break (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF00 / $FF89 | Pass 0 skeleton |  |
| Maniac Mansion (U) | 256 KB | none | Vertical | $E362 / $D799 / $FFFF | Pass 0 skeleton |  |
| Mechanized Attack (U) | 64 KB | 128 KB | Horizontal | $CE2A / $C000 / $CF0C | Pass 0 skeleton |  |
| Mega Man 2 (U) | 256 KB | none | Vertical | $CFF0 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Metal Mech (U) | 128 KB | 128 KB | Horizontal | $D786 / $D352 / $D7AD | Pass 0 skeleton |  |
| Metroid (U) | 128 KB | none | Vertical | $C0D9 / $FFB0 / $FFB0 | Pass 0 skeleton |  |
| Miracle Piano Teaching System, The (U) | 256 KB | 64 KB | Horizontal | $C003 / $C000 / $C006 | Pass 0 skeleton |  |
| Monopoly (U) | 128 KB | 128 KB | Horizontal | $C005 / $FF70 / $C000 | Pass 0 skeleton |  |
| Motor City Patrol (U) | 128 KB | 128 KB | Horizontal | $FF21 / $FFAD / $FFAD | Pass 0 skeleton |  |
| Mutant Virus, The (U) | 128 KB | 128 KB | Horizontal | $C16B / $C000 / $C16A | Pass 0 skeleton |  |
| NES Open Tournament Golf (U) | 256 KB | none | Horizontal | $D2BF / $FFF3 / $CD73 | Pass 0 skeleton | battery |
| NES Open Tournament Golf (U) [a1] | 256 KB | none | Horizontal | $D2BF / $FFF3 / $CD73 | Pass 0 skeleton | battery |
| Nigel Mansell's World Championship Challenge (U) | 128 KB | 128 KB | Horizontal | $0104 / $C000 / $0314 | Pass 0 skeleton |  |
| Ninja Gaiden (U) | 128 KB | 128 KB | Horizontal | $F91A / $FFDA / $FA1F | Pass 0 skeleton |  |
| Ninja Gaiden (U) [a1] | 128 KB | 128 KB | Horizontal | $F91A / $FFDA / $FA1F | Pass 0 skeleton |  |
| Ninja Gaiden (U) [a2] | 128 KB | 128 KB | Horizontal | $F91A / $FFDA / $FA1F | Pass 0 skeleton | 128-byte footer |
| Nobunaga's Ambition (U) | 256 KB | none | Horizontal | $C0DA / $C000 / $C139 | Pass 0 skeleton | battery |
| Operation Wolf (U) | 128 KB | 128 KB | Horizontal | $C0EA / $C010 / $C23C | Pass 0 skeleton |  |
| Orb 3D (U) | 64 KB | 128 KB | Horizontal | $C003 / $C000 / $C006 | Pass 0 skeleton |  |
| Overlord (U) | 256 KB | none | Horizontal | $C5F3 / $FFB0 / $FFDB | Pass 0 skeleton |  |
| POW - Prisoners of War (U) | 128 KB | 128 KB | Horizontal | $C053 / $C000 / $C0CE | Pass 0 skeleton |  |
| Palamedes (U) | 32 KB | 32 KB | Horizontal | $C055 / $BFD0 / $C0C1 | Pass 0 skeleton |  |
| Phantom Fighter (U) | 256 KB | none | Horizontal | $C000 / $FFB0 / $0F00 | Pass 0 skeleton |  |
| Pictionary (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF00 / $C239 | Pass 0 skeleton |  |
| Pinball Quest (U) | 128 KB | 128 KB | Horizontal | $C4B7 / $FFC0 / $C5D7 | Pass 0 skeleton |  |
| Pinball Quest (U) [a1] | 128 KB | 128 KB | Horizontal | $C4B7 / $FFC0 / $C5D7 | Pass 0 skeleton |  |
| Pirates! (U) | 128 KB | 128 KB | Horizontal | $F0F3 / $FFF1 / $FBFF | Pass 0 skeleton | battery |
| Platoon (U) (PRG 0) | 128 KB | 128 KB | Horizontal | $FC4B / $FFF3 / $FCBD | Pass 0 skeleton |  |
| Platoon (U) (PRG 1) [!] | 128 KB | 128 KB | Vertical | $FC4B / $FFF3 / $FCBD | Pass 0 skeleton |  |
| Predator (U) | 128 KB | 128 KB | Horizontal | $C643 / $C000 / $FEFE | Pass 0 skeleton |  |
| Princess Tomato in Salad Kingdom (U) | 256 KB | none | Horizontal | $C05C / $C000 / $C0D5 | Pass 0 skeleton |  |
| Qix (U) | 128 KB | none | Horizontal | $8003 / $FF90 / $8039 | Pass 0 skeleton |  |
| RC Pro-Am (U) (PRG 1) | 32 KB | 32 KB | Vertical | $9AAB / $FFE9 / $FFF0 | Pass 0 skeleton |  |
| Race America (U) | 128 KB | 128 KB | Horizontal | $CAC3 / $FFF1 / $CBB5 | Pass 0 skeleton |  |
| Racket Attack (U) | 256 KB | 128 KB | Horizontal | $80AB / $FFB0 / $811C | Pass 0 skeleton |  |
| Rad Racer (U) | 128 KB | none | Horizontal | $FF38 / $FE89 / $FF5E | Pass 0 skeleton |  |
| Remote Control (U) | 128 KB | 128 KB | Horizontal | $FD64 / $FF00 / $EC22 | Pass 0 skeleton |  |
| Rescue - The Embassy Mission (U) | 128 KB | 128 KB | Horizontal | $EBFE / $EB00 / $F5FE | Pass 0 skeleton |  |
| Robin Hood - Prince of Thieves (U) | 256 KB | none | Horizontal | $C02F / $BFB0 / $FFDB | Pass 0 skeleton |  |
| Robocop 2 (U) | 128 KB | 128 KB | Horizontal | $FE51 / $FF64 / $FE7F | Pass 0 skeleton |  |
| Robocop 3 (U) | 128 KB | 128 KB | Horizontal | $C466 / $FF00 / $C464 | Pass 0 skeleton |  |
| Rocket Ranger (U) [!] | 256 KB | none | Horizontal | $D71E / $C000 / $FFF9 | Pass 0 skeleton |  |
| Rocketeer, The (U) | 256 KB | none | Vertical | $C000 / $FFA2 / $FFA2 | Pass 0 skeleton |  |
| Rollerball (U) | 128 KB | 32 KB | Horizontal | $C073 / $C000 / $C05E | Pass 0 skeleton |  |
| Romance of the Three Kingdoms (U) | 256 KB | none | Horizontal | $C0D5 / $C000 / $C13F | Pass 0 skeleton | battery |
| SCAT - Special Cybernetic Attack Team (U) | 128 KB | 128 KB | Horizontal | $C05E / $BFD0 / $C0E2 | Pass 0 skeleton |  |
| Sesame Street 123 (U) | 32 KB | 32 KB | Horizontal | $FF40 / $CCFA / $FFB2 | Pass 0 skeleton |  |
| Sesame Street ABC (U) | 32 KB | 32 KB | Horizontal | $94C6 / $EC53 / $9372 | Pass 0 skeleton |  |
| Sesame Street ABC - 123 (U) | 128 KB | 128 KB | Horizontal | $C45F / $FFEE / $C45E | Pass 0 skeleton |  |
| Sesame Street Countdown (U) | 128 KB | 128 KB | Horizontal | $CDF9 / $D1CD / $C9DD | Pass 0 skeleton |  |
| Shingen The Ruler (U) | 256 KB | none | Horizontal | $FEF8 / $FFD9 / $FEA0 | Pass 0 skeleton |  |
| Shingen The Ruler (U) [a1] | 256 KB | none | Horizontal | $FEF8 / $FFD9 / $FEA0 | Pass 0 skeleton |  |
| Short Order - Eggsplode (U) | 32 KB | 32 KB | Horizontal | $C4AF / $FFB0 / $C4EE | Pass 0 skeleton |  |
| Silk Worm (U) | 128 KB | 128 KB | Vertical | $C103 / $FF80 / $C106 | Pass 0 skeleton |  |
| Simpsons - Bart Vs the Space Mutants, The (U) | 128 KB | 128 KB | Vertical | $CEDE / $C000 / $CF29 | Pass 0 skeleton |  |
| Skate or Die 2 - The Search for Double Trouble (U) | 256 KB | 128 KB | Horizontal | $CADD / $C4B3 / $D02A | Pass 0 skeleton |  |
| Sky Kid (U) | 32 KB | 64 KB | Horizontal | $F429 / $F212 / $F212 | Pass 0 skeleton |  |
| Sky Shark (U) | 64 KB | 128 KB | Horizontal | $07FD / $FF00 / $FF9E | Pass 0 skeleton |  |
| Snake Rattle'n Roll (U) | 32 KB | 32 KB | Horizontal | $FF81 / $FFF1 / $FF80 | Pass 0 skeleton |  |
| Snake's Revenge (U) | 128 KB | 128 KB | Horizontal | $C093 / $FFF2 / $C0F1 | Pass 0 skeleton |  |
| Snoopy's Silly Sports Spectacular (U) | 128 KB | 128 KB | Horizontal | $E8E9 / $E800 / $F219 | Pass 0 skeleton |  |
| Snow Bros (U) | 128 KB | 128 KB | Horizontal | $C246 / $FFD8 / $C0C0 | Pass 0 skeleton |  |
| Space Shuttle Project (U) | 256 KB | none | Horizontal | $C003 / $FFF1 / $C006 | Pass 0 skeleton |  |
| Spot (U) | 128 KB | none | Horizontal | $D468 / $C000 / $D466 | Pass 0 skeleton |  |
| Stealth ATF (U) | 128 KB | 128 KB | Horizontal | $801A / $8000 / $D1E5 | Pass 0 skeleton |  |
| Street Cop (U) | 128 KB | 128 KB | Horizontal | $F942 / $FFD3 / $FFF0 | Pass 0 skeleton |  |
| Strider (U) | 256 KB | none | Horizontal | $C0ED / $BFE0 / $C12B | Pass 0 skeleton |  |
| Super Dodge Ball (U) | 128 KB | 128 KB | Horizontal | $FF3A / $FFE8 / $EF9E | Pass 0 skeleton |  |
| Super Jeopardy! (U) | 128 KB | 128 KB | Horizontal | $C4A2 / $FFF0 / $FFF0 | Pass 0 skeleton |  |
| Super Mario Bros - Duck Hunt - Track Meet (U) | 128 KB | 64 KB | Horizontal | $E001 / $E037 / $E000 | Pass 0 skeleton |  |
| Superman (U) | 128 KB | 128 KB | Horizontal | $E8E3 / $FFED / $EE40 | Pass 0 skeleton |  |
| Swamp Thing (U) [!] | 128 KB | 128 KB | Horizontal | $C109 / $FFF1 / $C15C | Pass 0 skeleton |  |
| Taboo - The Sixth Sense (U) | 32 KB | 32 KB | Horizontal | $8059 / $8000 / $FF69 | Pass 0 skeleton |  |
| TaleSpin (U) | 128 KB | 128 KB | Horizontal | $C000 / $FFE0 / $FFE0 | Pass 0 skeleton |  |
| Target Renegade (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF00 / $FFA6 | Pass 0 skeleton |  |
| Tecmo Baseball (U) | 128 KB | none | Horizontal | $C103 / $FF00 / $C106 | Pass 0 skeleton |  |
| Tecmo Bowl (U) (PRG 0) | 128 KB | 128 KB | Horizontal | $C060 / $C000 / $C3A0 | Pass 0 skeleton |  |
| Tecmo Bowl (U) (PRG 1) | 128 KB | 128 KB | Vertical | $C060 / $FFE0 / $C060 | Pass 0 skeleton |  |
| Tecmo Bowl (U) (Prototype) | 128 KB | 128 KB | Horizontal | $C060 / $C000 / $C2A0 | Pass 0 skeleton |  |
| Tecmo Cup - Soccer Game (U) | 128 KB | 128 KB | Horizontal | $8002 / $FFC0 / $8002 | Pass 0 skeleton |  |
| Tecmo Cup - Soccer Game (U) [a1] | 128 KB | 128 KB | Horizontal | $8002 / $FFC0 / $8002 | Pass 0 skeleton |  |
| Tecmo World Wrestling (U) | 128 KB | 128 KB | Vertical | $BF00 / $FFE0 / $BF00 | Pass 0 skeleton |  |
| Teenage Mutant Ninja Turtles (U) | 128 KB | 128 KB | Horizontal | $C3A3 / $FFD8 / $C412 | Pass 0 skeleton |  |
| Tetris (U) [!] | 32 KB | 16 KB | Vertical | $8005 / $FF00 / $804A | Pass 0 skeleton |  |
| Three Stooges (U) | 128 KB | 128 KB | Horizontal | $E859 / $E45F / $E8DA | Pass 0 skeleton |  |
| Three Stooges (U) (Prototype) | 128 KB | 128 KB | Vertical | $E925 / $E540 / $E9A6 | Pass 0 skeleton |  |
| Thunderbirds (U) | 128 KB | 128 KB | Horizontal | $C7A9 / $C600 / $C85B | Pass 0 skeleton |  |
| Tombs and Treasure (U) | 256 KB | none | Horizontal | $C003 / $C000 / $C006 | Pass 0 skeleton |  |
| Touch Down Fever (U) | 128 KB | 32 KB | Horizontal | $C047 / $C000 / $C044 | Pass 0 skeleton |  |
| Track & Field 2 (U) | 128 KB | 128 KB | Horizontal | $C047 / $C001 / $C121 | Pass 0 skeleton |  |
| Treasure Master (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF0C / $FF8F | Pass 0 skeleton |  |
| Ultima - Exodus (U) | 256 KB | none | Vertical | $EA30 / $FFA0 / $ED32 | Pass 0 skeleton | battery |
| Ultima - Quest of the Avatar (U) | 256 KB | none | Horizontal | $F1A1 / $FFDA / $FFDA | Pass 0 skeleton | battery |
| Ultima - Warriors of Destiny (U) | 256 KB | none | Horizontal | $CE4B / $C000 / $FC1C | Pass 0 skeleton |  |
| Untouchables, The (U) | 128 KB | 128 KB | Horizontal | $0108 / $FF50 / $0314 | Pass 0 skeleton |  |
| Vegas Dream (U) | 128 KB | 128 KB | Horizontal | $C401 / $FF00 / $C4B4 | Pass 0 skeleton |  |
| Win, Lose or Draw (U) | 128 KB | none | Horizontal | $EC40 / $FF00 / $EDA7 | Pass 0 skeleton |  |
| Wizardry - Proving Grounds of the Mad Overlord (U) | 128 KB | 128 KB | Vertical | $C069 / $C003 / $C1C9 | Pass 0 skeleton | battery |
| Wrath of the Black Manta (U) | 128 KB | 128 KB | Horizontal | $817E / $FFD8 / $FFD5 | Pass 0 skeleton |  |
| Wrecking Crew (JUE) | 32 KB | 8 KB | Horizontal | $9BB7 / $9ACD / $9ACD | Pass 0 skeleton |  |
| Xenophobe (U) | 128 KB | 32 KB | Horizontal | $C0E8 / $FFF3 / $FFF3 | Pass 0 skeleton |  |
| Xexyz (U) | 128 KB | 128 KB | Horizontal | $815A / $FFD0 / $FFD8 | Pass 0 skeleton |  |
| Yo! Noid (U) | 128 KB | 128 KB | Horizontal | $C33B / $FFD1 / $C413 | Pass 0 skeleton |  |
| Yoshi (U) | 128 KB | 128 KB | Horizontal | $E122 / $FFDA / $E1ED | Pass 0 skeleton |  |
| Zelda 2 - The Adventure of Link (U) | 128 KB | 128 KB | Horizontal | $C07B / $FF70 / $FFF0 | Pass 0 skeleton | battery |

### `_wip/MMC3/` — mapper 4 (239 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| 8 Eyes (U) | 128 KB | 128 KB | Horizontal | $FA00 / $FF00 / $FE09 | Pass 0 skeleton |  |
| AD&D Dragon Strike (U) | 256 KB | 256 KB | Vertical | $FE05 / $FE98 / $FE98 | Pass 0 skeleton |  |
| AD&D Dragon Strike (U) [a1] | 256 KB | 256 KB | Horizontal | $FE05 / $FE98 / $FE98 | Pass 0 skeleton |  |
| AD&D Pool of Radiance (U) | 512 KB | 128 KB | Vertical | $F5EE / $F5AC / $D85E | Pass 0 skeleton | battery |
| Adventures of Lolo 2 (U) | 32 KB | 32 KB | Horizontal | $D317 / $FFEF / $D38D | Pass 0 skeleton |  |
| Adventures of Rocky and Bullwinkle and Friends, The (U) | 128 KB | 128 KB | Vertical | $C000 / $FE00 / $C15D | Pass 0 skeleton |  |
| Alien 3 (U) | 128 KB | 128 KB | Horizontal | $FE82 / $E000 / $FE7F | Pass 0 skeleton |  |
| Alien Syndrome (U) | 128 KB | 128 KB | Vertical | $F682 / $FB07 / $FB07 | Pass 0 skeleton |  |
| Astyanax (U) | 128 KB | 128 KB | Horizontal | $E0D0 / $E000 / $E1C3 | Pass 0 skeleton |  |
| Astyanax (U) (Prototype) | 128 KB | 128 KB | Vertical | $E0BD / $E000 / $E1A8 | Pass 0 skeleton |  |
| Bad Dudes (U) | 128 KB | 128 KB | Horizontal | $CA73 / $FF30 / $D015 | Pass 0 skeleton |  |
| Base Wars (U) | 128 KB | 128 KB | Horizontal | $F95E / $F830 / $FABA | Pass 0 skeleton |  |
| Base Wars (U) [a1] | 128 KB | 128 KB | Horizontal | $F95E / $F830 / $FABA | Pass 0 skeleton |  |
| Baseball Stars 2 (U) | 256 KB | 128 KB | Horizontal | $F71B / $F2DE / $F7B7 | Pass 0 skeleton |  |
| Bases Loaded 3 (U) | 256 KB | 128 KB | Horizontal | $E921 / $FF15 / $E9FE | Pass 0 skeleton |  |
| Bases Loaded 4 (U) | 256 KB | 128 KB | Horizontal | $C131 / $FD4E / $C227 | Pass 0 skeleton |  |
| Batman (U) | 128 KB | 128 KB | Horizontal | $ED2A / $FFF6 / $EE9A | Pass 0 skeleton |  |
| Batman (U) (Prototype) | 128 KB | 128 KB | Vertical | $ECE7 / $FFF6 / $EE57 | Pass 0 skeleton |  |
| Batman Returns (U) | 128 KB | 256 KB | Horizontal | $FC75 / $FBCC / $CF29 | Pass 0 skeleton |  |
| Bill Elliott's NASCAR Challenge (U) | 128 KB | 256 KB | Horizontal | $E1AE / $E000 / $E3B4 | Pass 0 skeleton |  |
| Blue Marlin, The (U) | 128 KB | 128 KB | Horizontal | $E124 / $E000 / $E1B4 | Pass 0 skeleton |  |
| Bo Jackson Baseball (U) | 128 KB | 256 KB | Vertical | $E353 / $E000 / $E096 | Pass 0 skeleton |  |
| Bonk's Adventure (U) | 256 KB | 128 KB | Horizontal | $C19A / $FFC0 / $C281 | Pass 0 skeleton |  |
| Bram Stoker's Dracula (U) | 128 KB | 128 KB | Vertical | $FFF4 / $E000 / $FFF7 | Pass 0 skeleton |  |
| Bubble Bobble Part 2 (U) | 128 KB | 128 KB | Horizontal | $E148 / $E000 / $E132 | Pass 0 skeleton |  |
| Bucky O'Hare (U) [!] | 128 KB | 128 KB | Vertical | $FB86 / $FB3B / $D32C | Pass 0 skeleton |  |
| Bugs Bunny Birthday Bash (Prototype) (U) | 128 KB | 128 KB | Horizontal | $ECC7 / $E800 / $EB49 | Pass 0 skeleton |  |
| Bugs Bunny Birthday Blowout, The (U) | 128 KB | 128 KB | Horizontal | $ED9F / $E8C0 / $EC21 | Pass 0 skeleton |  |
| Burai Fighter (U) | 32 KB | 32 KB | Horizontal | $F998 / $F8D7 / $FC90 | Pass 0 skeleton |  |
| Captain America and the Avengers (U) | 128 KB | 128 KB | Horizontal | $E1DE / $E000 / $D79B | Pass 0 skeleton |  |
| Captain Planet and the Planeteers (U) | 128 KB | 128 KB | Horizontal | $F7EE / $F9B2 / $F90B | Pass 0 skeleton |  |
| Cliffhanger (U) | 128 KB | 128 KB | Vertical | $C000 / $FF97 / $C14A | Pass 0 skeleton |  |
| Code Name Viper (U) | 128 KB | 128 KB | Horizontal | $FA68 / $FE00 / $E32B | Pass 0 skeleton |  |
| Conquest of the Crystal Palace (U) | 128 KB | 128 KB | Horizontal | $F89D / $F7E8 / $F750 | Pass 0 skeleton |  |
| Contra Force (U) | 128 KB | 128 KB | Vertical | $FD6B / $FD2B / $F728 | Pass 0 skeleton |  |
| Cowboy Kid (U) | 256 KB | 256 KB | Horizontal | $C009 / $FFB0 / $C006 | Pass 0 skeleton |  |
| Crash'n The Boys Street Challenge (U) | 128 KB | 128 KB | Horizontal | $FFF1 / $FFF4 / $FFF7 | Pass 0 skeleton |  |
| Crystalis (Prototype) (U) | 256 KB | 128 KB | Horizontal | $F3B3 / $F2A3 / $F43C | Pass 0 skeleton | battery |
| Crystalis (Prototype) (U) [a1] | 256 KB | 128 KB | Horizontal | $F3B3 / $F2A3 / $F43C | Pass 0 skeleton | battery |
| Crystalis (U) | 256 KB | 128 KB | Horizontal | $F3B6 / $F2A4 / $F443 | Pass 0 skeleton | battery |
| Crystalis (U) [a1] | 256 KB | 128 KB | Horizontal | $F3B6 / $F2A4 / $F443 | Pass 0 skeleton | 127-byte footer; battery |
| Cyberball (U) | 128 KB | 128 KB | Horizontal | $F3BF / $E000 / $F5AE | Pass 0 skeleton |  |
| Days of Thunder (U) | 128 KB | 256 KB | Vertical | $8059 / $FDF5 / $805C | Pass 0 skeleton |  |
| Defenders of Dynatron City (U) | 128 KB | 128 KB | Horizontal | $C08E / $FFF2 / $FE80 | Pass 0 skeleton |  |
| Deja Vu (U) | 128 KB | 256 KB | Horizontal | $EC9A / $E800 / $EB40 | Pass 0 skeleton |  |
| Dirty Harry (U) | 256 KB | 128 KB | Horizontal | $F5BC / $F68F / $F68E | Pass 0 skeleton |  |
| Double Dragon 2 - The Revenge (U) | 128 KB | 128 KB | Horizontal | $FF50 / $FF75 / $EC34 | Pass 0 skeleton |  |
| Double Dragon 3 - The Sacred Stones (U) | 128 KB | 128 KB | Horizontal | $FF5F / $FF84 / $E173 | Pass 0 skeleton |  |
| Dragon Spirit - The New Legend (U) | 128 KB | 128 KB | Horizontal | $CE2C / $FFD1 / $FFD1 | Pass 0 skeleton |  |
| Earth Bound (Prototype) (U) | 256 KB | 256 KB | Vertical | $F79F / $FF40 / $FE13 | Pass 0 skeleton | battery |
| Earth Bound Zero (Neo Demiforce v1.01 Hack-1) (U) | 256 KB | 256 KB | Vertical | $F79F / $FF40 / $FE13 | Pass 0 skeleton | battery |
| Earth Bound Zero (Neo Demiforce v1.01 Hack-2) (U) | 256 KB | 256 KB | Vertical | $F79F / $FF40 / $FE13 | Pass 0 skeleton | battery |
| F-117a Stealth Fighter (U) [!] | 256 KB | 256 KB | Vertical | $E24E / $E000 / $E320 | Pass 0 skeleton | battery |
| F-15 Strike Eagle (U) | 256 KB | 256 KB | Horizontal | $F130 / $F97C / $F12F | Pass 0 skeleton |  |
| Fantasy Zone (U) | 64 KB | 64 KB | Horizontal | $C006 / $FFB0 / $C003 | Pass 0 skeleton |  |
| Felix the Cat (U) | 128 KB | 128 KB | Vertical | $C0C0 / $FFD0 / $C189 | Pass 0 skeleton |  |
| Fire 'n Ice (U) | 128 KB | 128 KB | Vertical | $E003 / $E000 / $E006 | Pass 0 skeleton |  |
| Flintstones - The Rescue of Dino & Hoppy, The (U) | 128 KB | 256 KB | Horizontal | $F944 / $F752 / $01FD | Pass 0 skeleton |  |
| Flintstones 2 - The Surprise at Dinosaur Peak!, The (U) | 128 KB | 256 KB | Horizontal | $F9D0 / $F7C1 / $01FD | Pass 0 skeleton |  |
| GI Joe (U) | 128 KB | 256 KB | Horizontal | $EF46 / $EED2 / $F34C | Pass 0 skeleton |  |
| GI Joe - The Atlantis Factor (U) | 128 KB | 256 KB | Horizontal | $F3C1 / $F336 / $F9CF | Pass 0 skeleton |  |
| Galaxy 5000 (U) | 128 KB | 128 KB | Horizontal | $FE96 / $F400 / $FF8F | Pass 0 skeleton |  |
| Gargoyle's Quest 2 - The Demon Darkness (U) | 128 KB | 128 KB | Horizontal | $C000 / $FDD0 / $C144 | Pass 0 skeleton |  |
| Gauntlet (U) | 128 KB | 64 KB | Vertical | $C16A / $FF90 / $FF90 | Pass 0 skeleton | four-screen flag |
| Gauntlet 2 (U) | 128 KB | 128 KB | Vertical | $F65F / $F6C2 / $F69D | Pass 0 skeleton | four-screen flag |
| George Foreman's KO Boxing (U) | 128 KB | 256 KB | Horizontal | $E24A / $E336 / $E222 | Pass 0 skeleton |  |
| Gold Medal Challenge '92 (U) | 128 KB | 128 KB | Horizontal | $C0F8 / $FFD8 / $C20F | Pass 0 skeleton |  |
| Gremlins 2 - The New Batch (U) | 128 KB | 256 KB | Horizontal | $E2DD / $E3C6 / $E36A | Pass 0 skeleton |  |
| Gun Nac (U) | 128 KB | 128 KB | Vertical | $EF85 / $E000 / $F20B | Pass 0 skeleton |  |
| Heavy Barrel (U) | 128 KB | 128 KB | Horizontal | $E178 / $E000 / $E4C9 | Pass 0 skeleton |  |
| Home Alone (U) [!] | 128 KB | 128 KB | Horizontal | $E3D6 / $E000 / $E4D1 | Pass 0 skeleton |  |
| Home Alone 2 - Lost in New York (U) | 128 KB | 128 KB | Horizontal | $C121 / $FFDB / $C18F | Pass 0 skeleton |  |
| Hudson's Adventure Island 2 (U) | 128 KB | 128 KB | Horizontal | $E0CE / $FFAE / $E152 | Pass 0 skeleton |  |
| Hudson's Adventure Island 3 (U) | 128 KB | 128 KB | Horizontal | $E0E3 / $FFAE / $E17F | Pass 0 skeleton |  |
| Hunt for Red October, The (U) | 128 KB | 128 KB | Horizontal | $EB8C / $EAFF / $EDF2 | Pass 0 skeleton |  |
| Image Fight (U) | 128 KB | 128 KB | Horizontal | $FDE0 / $FF90 / $FF81 | Pass 0 skeleton |  |
| Immortal, The (U) | 128 KB | 256 KB | Horizontal | $F84D / $F6D6 / $F750 | Pass 0 skeleton |  |
| Incredible Crash Dummies, The (U) | 128 KB | 256 KB | Horizontal | $07FD / $E102 / $07FA | Pass 0 skeleton |  |
| Indiana Jones and the Temple of Doom (Tengen) (U) | 128 KB | 64 KB | Horizontal | $EC56 / $EBA4 / $0000 | Pass 0 skeleton |  |
| Indiana Jones and the Temple of Doom (U) | 128 KB | 64 KB | Horizontal | $EC56 / $EBA4 / $0000 | Pass 0 skeleton |  |
| Infiltrator (U) | 128 KB | 64 KB | Horizontal | $F6A5 / $F70D / $F6F6 | Pass 0 skeleton |  |
| Isolated Warrior (U) | 128 KB | 128 KB | Horizontal | $F592 / $F432 / $F94F | Pass 0 skeleton |  |
| Jackie Chan's Action Kung Fu (U) | 128 KB | 128 KB | Horizontal | $E0A8 / $FFDD / $E1DA | Pass 0 skeleton |  |
| James Bond Jr (U) | 128 KB | 128 KB | Vertical | $C432 / $FD61 / $C424 | Pass 0 skeleton |  |
| Jetsons - Cogswell's Caper!, The (U) | 128 KB | 256 KB | Vertical | $C003 / $FFF0 / $C006 | Pass 0 skeleton |  |
| Joe & Mac (U) | 128 KB | 128 KB | Vertical | $FD5D / $FFD6 / $F649 | Pass 0 skeleton |  |
| Jungle Book, The (U) | 128 KB | 128 KB | Horizontal | $EEF3 / $EFF5 / $EEE5 | Pass 0 skeleton |  |
| Jurassic Park (U) | 128 KB | 128 KB | Horizontal | $CBAD / $E4FE / $CED3 | Pass 0 skeleton |  |
| Kabuki - Quantum Fighter (U) | 128 KB | 128 KB | Vertical | $F8B1 / $F747 / $01FD | Pass 0 skeleton |  |
| Karnov (U) | 128 KB | 64 KB | Horizontal | $C1DB / $C000 / $C200 | Pass 0 skeleton |  |
| Kick Master (U) | 128 KB | 128 KB | Vertical | $F0BB / $F010 / $F7B1 | Pass 0 skeleton |  |
| Kickle Cubicle (U) | 128 KB | 128 KB | Vertical | $C190 / $FFD0 / $FFD0 | Pass 0 skeleton |  |
| Kid Klown (U) | 128 KB | 128 KB | Horizontal | $F39C / $E8C0 / $F64E | Pass 0 skeleton |  |
| King's Quest V (U) | 256 KB | 256 KB | Vertical | $07F9 / $FFC0 / $07FD | Pass 0 skeleton | four-screen flag; battery |
| Kirby's Adventure (U) (PRG 0) | 512 KB | 256 KB | Horizontal | $C341 / $FFF0 / $0029 | Pass 0 skeleton | battery |
| Kirby's Adventure (U) (PRG 1) [!] | 512 KB | 256 KB | Horizontal | $C341 / $FFF0 / $0029 | Pass 0 skeleton | battery |
| Kiwi Kraze (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF00 / $07FA | Pass 0 skeleton |  |
| Krion Conquest, The (U) | 128 KB | 128 KB | Horizontal | $E11B / $E100 / $E180 | Pass 0 skeleton |  |
| Krion Conquest, The (U) [a1] | 128 KB | 128 KB | Horizontal | $E11B / $E100 / $E180 | Pass 0 skeleton |  |
| Krusty's Fun House (U) | 256 KB | 128 KB | Horizontal | $E2CD / $F995 / $E2A0 | Pass 0 skeleton |  |
| Last Action Hero (U) [!] | 128 KB | 128 KB | Vertical | $FB84 / $E000 / $F7C3 | Pass 0 skeleton |  |
| Last Ninja, The (U) | 128 KB | 128 KB | Horizontal | $E000 / $E141 / $8000 | Pass 0 skeleton |  |
| Legacy of the Wizard (U) | 128 KB | 64 KB | Horizontal | $D1FE / $FFE0 / $D1FE | Pass 0 skeleton |  |
| Legends of the Diamond (U) | 128 KB | 256 KB | Horizontal | $E002 / $E100 / $E005 | Pass 0 skeleton |  |
| Little Nemo - The Dream Master (U) | 128 KB | 128 KB | Horizontal | $F4D9 / $F444 / $F9D2 | Pass 0 skeleton |  |
| Little Ninja Brothers (U) | 128 KB | 128 KB | Horizontal | $ED87 / $E307 / $EC95 | Pass 0 skeleton |  |
| Little Samson (U) | 256 KB | 128 KB | Vertical | $E0BE / $E000 / $E1A8 | Pass 0 skeleton |  |
| Lone Ranger, The (U) | 256 KB | 128 KB | Horizontal | $F1AF / $F151 / $00E3 | Pass 0 skeleton |  |
| Low G Man (U) | 128 KB | 128 KB | Vertical | $F4B1 / $F400 / $F949 | Pass 0 skeleton |  |
| MC Kids (U) | 128 KB | 128 KB | Horizontal | $C66C / $FF80 / $C61C | Pass 0 skeleton |  |
| Mad Max (U) [!] | 128 KB | 128 KB | Horizontal | $F200 / $F26A / $F253 | Pass 0 skeleton |  |
| Mafat Conspiracy - Golgo 13 (U) | 128 KB | 128 KB | Horizontal | $E5E1 / $E040 / $E3F8 | Pass 0 skeleton |  |
| Magician (U) | 128 KB | 128 KB | Horizontal | $F9AB / $F9C1 / $F9B3 | Pass 0 skeleton |  |
| Magician (U) (Prototype) | 128 KB | 128 KB | Vertical | $F96E / $F984 / $F976 | Pass 0 skeleton | battery |
| Mappy-Land (U) | 128 KB | 32 KB | Horizontal | $062D / $FFC0 / $F064 | Pass 0 skeleton |  |
| Mario is Missing! (U) | 128 KB | 128 KB | Horizontal | $C002 / $FA94 / $C380 | Pass 0 skeleton |  |
| Mario's Time Machine! (U) | 128 KB | 128 KB | Vertical | $F749 / $FAE4 / $F489 | Pass 0 skeleton |  |
| Mario's Time Machine! (U) [a1] | 128 KB | 128 KB | Horizontal | $F749 / $FAE4 / $F489 | Pass 0 skeleton |  |
| Mega Man 3 (Prototype) (U) [!] | 256 KB | 128 KB | Vertical | $C000 / $FE00 / $C143 | Pass 0 skeleton |  |
| Mega Man 3 (U) [!] | 256 KB | 128 KB | Horizontal | $C000 / $FE00 / $C143 | Pass 0 skeleton |  |
| Mega Man 4 (U) | 512 KB | none | Horizontal | $C000 / $FE00 / $C149 | Pass 0 skeleton |  |
| Mega Man 5 (U) | 256 KB | 256 KB | Horizontal | $C000 / $FE00 / $C169 | Pass 0 skeleton |  |
| Mega Man 6 (U) | 512 KB | none | Horizontal | $C000 / $FF70 / $C14C | Pass 0 skeleton |  |
| Mendel Palace (U) | 128 KB | 128 KB | Vertical | $C000 / $FF16 / $C068 | Pass 0 skeleton |  |
| Metal Storm (U) | 128 KB | 256 KB | Horizontal | $FCBF / $FC00 / $FC00 | Pass 0 skeleton |  |
| Michael Andretti's World Grand Prix (U) | 128 KB | 128 KB | Vertical | $FB12 / $F9C6 / $01FD | Pass 0 skeleton |  |
| Mickey's Adventures in Numberland (U) | 128 KB | 128 KB | Vertical | $E091 / $E000 / $E08E | Pass 0 skeleton |  |
| Mickey's Safari in Letterland (U) | 128 KB | 128 KB | Vertical | $E087 / $E000 / $E084 | Pass 0 skeleton |  |
| Might and Magic (U) | 256 KB | 256 KB | Horizontal | $FFEF / $FF70 / $DB8D | Pass 0 skeleton | battery |
| Mighty Final Fight (U) | 128 KB | 128 KB | Horizontal | $C000 / $FE00 / $C13B | Pass 0 skeleton |  |
| Mission Impossible (U) | 128 KB | 128 KB | Horizontal | $FE91 / $FE39 / $03E0 | Pass 0 skeleton |  |
| Monster in My Pocket (U) | 128 KB | 128 KB | Horizontal | $FD1F / $FC3D / $D843 | Pass 0 skeleton |  |
| NES Play Action Football (U) | 128 KB | 128 KB | Horizontal | $EF17 / $E250 / $8014 | Pass 0 skeleton |  |
| Nightshade (U) | 256 KB | 256 KB | Horizontal | $E446 / $E471 / $E443 | Pass 0 skeleton |  |
| Nightshade (U) [a1] | 256 KB | 256 KB | Horizontal | $E446 / $E471 / $E443 | Pass 0 skeleton |  |
| Ninja Crusaders (U) | 128 KB | none | Vertical | $FD9E / $FEDC / $FEB6 | Pass 0 skeleton |  |
| Ninja Gaiden 2 - The Dark Sword of Chaos (U) | 128 KB | 128 KB | Horizontal | $D4F3 / $FB62 / $D277 | Pass 0 skeleton |  |
| Ninja Gaiden 2 - The Dark Sword of Chaos (U) (Prototype) | 128 KB | 128 KB | Vertical | $D4F3 / $FB62 / $D277 | Pass 0 skeleton | battery |
| Ninja Gaiden 3 - The Ancient Ship of Doom (U) | 128 KB | 128 KB | Horizontal | $C68F / $FFE0 / $C7B0 | Pass 0 skeleton |  |
| Nintendo World Cup (U) | 128 KB | 128 KB | Horizontal | $FF5B / $FF82 / $E3AF | Pass 0 skeleton |  |
| North & South (U) | 128 KB | 128 KB | Horizontal | $ECC4 / $E800 / $EB8C | Pass 0 skeleton |  |
| Pacmania (U) | 64 KB | 32 KB | Horizontal | $EC10 / $ECC2 / $ECC2 | Pass 0 skeleton |  |
| Panic Restaurant (U) | 128 KB | 128 KB | Horizontal | $FA53 / $FF70 / $F204 | Pass 0 skeleton |  |
| Power Blade (U) [!] | 128 KB | 128 KB | Vertical | $F35A / $F186 / $F20A | Pass 0 skeleton |  |
| Power Blade 2 (U) | 128 KB | 128 KB | Vertical | $E9C7 / $E5B9 / $E640 | Pass 0 skeleton |  |
| Power Punch 2 (U) | 128 KB | 256 KB | Horizontal | $E0E0 / $E000 / $E0EB | Pass 0 skeleton |  |
| Punisher, The (U) | 128 KB | 128 KB | Horizontal | $E6E6 / $E54A / $E712 | Pass 0 skeleton |  |
| RBI Baseball (U) | 64 KB | 32 KB | Vertical | $F05B / $F000 / $F000 | Pass 0 skeleton |  |
| RBI Baseball 2 (U) | 128 KB | 64 KB | Vertical | $F5C9 / $F538 / $F538 | Pass 0 skeleton |  |
| RBI Baseball 3 (U) | 128 KB | 64 KB | Vertical | $F656 / $F5B4 / $F5B4 | Pass 0 skeleton |  |
| Rad Racer 2 (U) [!] | 64 KB | 64 KB | Horizontal | $F68C / $F2A9 / $C147 | Pass 0 skeleton |  |
| Rampage (U) | 128 KB | 64 KB | Horizontal | $DA41 / $FC99 / $DAC6 | Pass 0 skeleton |  |
| Rampart (U) | 128 KB | 128 KB | Vertical | $FB3C / $FEE7 / $F36D | Pass 0 skeleton |  |
| Ren & Stimpy Show, The (U) | 128 KB | 128 KB | Horizontal | $C128 / $FFDB / $C1B3 | Pass 0 skeleton |  |
| Ring King (U) | 64 KB | 64 KB | Vertical | $C0C4 / $FFDA / $FFDA | Pass 0 skeleton |  |
| River City Ransom (U) | 128 KB | 128 KB | Horizontal | $FF4F / $FF76 / $F1D9 | Pass 0 skeleton |  |
| Road Runner (U) | 64 KB | 128 KB | Vertical | $FE40 / $E000 / $FEBD | Pass 0 skeleton |  |
| Robocop (U) | 128 KB | 128 KB | Horizontal | $C195 / $FF00 / $C1BE | Pass 0 skeleton |  |
| Robocop Vs The Terminator (Prototype) (U) | 128 KB | 128 KB | Vertical | $C680 / $FF80 / $C630 | Pass 0 skeleton |  |
| Robocop Vs The Terminator (Prototype) (U) [a1] | 128 KB | 128 KB | Vertical | $C680 / $FF80 / $C630 | Pass 0 skeleton |  |
| Rock 'n' Ball (U) | 128 KB | 64 KB | Horizontal | $C1D1 / $F6BF / $C3B8 | Pass 0 skeleton |  |
| Rockin' Kats (U) [!] | 128 KB | 128 KB | Vertical | $F885 / $F800 / $F50C | Pass 0 skeleton |  |
| Roger Clemens MVP Baseball (U) | 128 KB | 256 KB | Vertical | $CF44 / $FFAD / $CF43 | Pass 0 skeleton |  |
| Rollerblade Racer (U) | 128 KB | 128 KB | Vertical | $FD58 / $FB03 / $FCAE | Pass 0 skeleton |  |
| Rollergames (U) [!] | 128 KB | 128 KB | Vertical | $F3E5 / $F32F / $F27C | Pass 0 skeleton |  |
| Rolling Thunder (U) | 128 KB | 128 KB | Horizontal | $FA5E / $FE80 / $DED6 | Pass 0 skeleton |  |
| Roundball - 2-on-2 Challenge (U) | 128 KB | 128 KB | Horizontal | $EAB0 / $E005 / $E73D | Pass 0 skeleton |  |
| Shadow of the Ninja (U) | 128 KB | 128 KB | Vertical | $E12D / $E000 / $E3CD | Pass 0 skeleton |  |
| Shatterhand (U) | 128 KB | 128 KB | Vertical | $F626 / $FDB6 / $FB78 | Pass 0 skeleton |  |
| Silver Surfer (U) | 128 KB | 256 KB | Vertical | $07FD / $FF60 / $FD82 | Pass 0 skeleton |  |
| Simpsons - Bart Vs the World, The (U) | 256 KB | 128 KB | Horizontal | $D0D7 / $FFDB / $D153 | Pass 0 skeleton |  |
| Simpsons - Bartman Meets Radioactive Man, The (U) | 256 KB | 128 KB | Horizontal | $C11B / $FFDB / $C19D | Pass 0 skeleton |  |
| Smash TV (U) [!] | 128 KB | 128 KB | Vertical | $E0F5 / $E000 / $E168 | Pass 0 skeleton |  |
| Spider-Man - Return of the Sinister Six (U) [!] | 128 KB | 256 KB | Vertical | $C128 / $E240 / $C12B | Pass 0 skeleton |  |
| Stanley - The Search for Dr Livingston (U) | 128 KB | 128 KB | Vertical | $C81A / $FFA6 / $C819 | Pass 0 skeleton |  |
| Star Trek - 25th Anniversary (U) | 256 KB | 256 KB | Horizontal | $C00F / $FF72 / $C367 | Pass 0 skeleton |  |
| Star Wars (U) | 128 KB | 128 KB | Horizontal | $E003 / $E7B0 / $E000 | Pass 0 skeleton |  |
| Star Wars - The Empire Strikes Back (U) | 256 KB | 256 KB | Horizontal | $FBD7 / $FB22 / $FB60 | Pass 0 skeleton |  |
| Startropics 2 - Zoda's Revenge (U) | 256 KB | 256 KB | Horizontal | $FFAD / $FFA0 / $FFB5 | Pass 0 skeleton |  |
| Startropics 2 - Zoda's Revenge (U) [a1] | 256 KB | 256 KB | Horizontal | $FFAD / $FFA0 / $FFB5 | Pass 0 skeleton |  |
| Street Fighter 2010 (U) | 128 KB | 128 KB | Horizontal | $C270 / $FF80 / $C3C1 | Pass 0 skeleton |  |
| Super C (U) | 128 KB | 128 KB | Vertical | $FB67 / $FACA / $E07F | Pass 0 skeleton |  |
| Super Mario Bros 2 (U) (PRG 0) | 128 KB | 128 KB | Vertical | $EB8E / $FF50 / $FFF0 | Pass 0 skeleton |  |
| Super Mario Bros 2 (U) (PRG 1) | 128 KB | 128 KB | Vertical | $EB94 / $FF50 / $FFF0 | Pass 0 skeleton |  |
| Super Mario Bros 3 (U) (PRG 0) | 256 KB | 128 KB | Horizontal | $F486 / $FF40 / $F795 | Pass 0 skeleton |  |
| Super Mario Bros 3 (U) (PRG 1) | 256 KB | 128 KB | Horizontal | $F486 / $FF40 / $F795 | Pass 0 skeleton |  |
| Super Mario Bros 3 (U) (PRG 1) [a1] | 256 KB | 128 KB | Horizontal | $F486 / $FF40 / $F795 | Pass 0 skeleton |  |
| Super Mario Bros 3 (U) (PRG 1) [a2] | 256 KB | 128 KB | Horizontal | $F486 / $FF40 / $F795 | Pass 0 skeleton |  |
| Super Mario Bros 3 (U) (PRG 1) [a3] | 256 KB | 128 KB | Horizontal | $F486 / $FF40 / $F795 | Pass 0 skeleton |  |
| Super Spike V'Ball (U) | 128 KB | 128 KB | Horizontal | $FF7E / $FF7B / $FF81 | Pass 0 skeleton |  |
| Super Sprint (U) | 64 KB | 64 KB | Vertical | $DF8F / $FF00 / $FF00 | Pass 0 skeleton |  |
| Super Spy Hunter (U) | 128 KB | 128 KB | Vertical | $C5B4 / $FFF6 / $C59C | Pass 0 skeleton |  |
| Sword Master (U) | 128 KB | 128 KB | Vertical | $E100 / $E000 / $E175 | Pass 0 skeleton |  |
| T&C 2 - Thrilla's Surfari (U) | 128 KB | 128 KB | Vertical | $C003 / $FF80 / $C003 | Pass 0 skeleton |  |
| Tecmo NBA Basketball (U) | 128 KB | 256 KB | Vertical | $CD32 / $FFB0 / $FCC7 | Pass 0 skeleton | battery |
| Tecmo Super Bowl (U) | 256 KB | 128 KB | Horizontal | $C130 / $FFF0 / $C2C2 | Pass 0 skeleton |  |
| Teenage Mutant Ninja Turtles 2 (U) | 256 KB | 256 KB | Horizontal | $FE0C / $FDA1 / $0050 | Pass 0 skeleton |  |
| Teenage Mutant Ninja Turtles 3 (U) | 256 KB | 256 KB | Horizontal | $F814 / $F7A8 / $00E3 | Pass 0 skeleton |  |
| Teenage Mutant Ninja Turtles Tournament Fighters (U) | 128 KB | 128 KB | Horizontal | $F219 / $F174 / $F85E | Pass 0 skeleton |  |
| Terminator 2 - Judgement Day (U) | 128 KB | 128 KB | Vertical | $C0C0 / $FF8B / $C1FB | Pass 0 skeleton |  |
| Terminator 2 - Judgement Day (U) (Prototype) | 128 KB | 128 KB | Vertical | $C000 / $E987 / $C124 | Pass 0 skeleton |  |
| Terminator, The (U) | 128 KB | 128 KB | Horizontal | $C000 / $FED5 / $C1D3 | Pass 0 skeleton |  |
| Tetris 2 (U) [!] | 128 KB | 128 KB | Vertical | $C68F / $FFD0 / $C710 | Pass 0 skeleton |  |
| Tiny Toon Adventures (U) | 128 KB | 128 KB | Horizontal | $FE70 / $FDB7 / $FA22 | Pass 0 skeleton |  |
| Tiny Toon Adventures 2 - Trouble in Wackyland (U) | 128 KB | 128 KB | Horizontal | $FE47 / $FDD3 / $F9E4 | Pass 0 skeleton |  |
| Tiny Toon Adventures Cartoon Workshop (U) | 128 KB | 128 KB | Vertical | $E2B4 / $E2BA / $E2B7 | Pass 0 skeleton |  |
| To The Earth (U) | 32 KB | 32 KB | Vertical | $E306 / $E144 / $9EC1 | Pass 0 skeleton |  |
| Toki (U) | 128 KB | 256 KB | Horizontal | $FC1E / $F400 / $FFF7 | Pass 0 skeleton |  |
| Tom & Jerry (and Tuffy) (U) | 128 KB | 128 KB | Horizontal | $07FD / $E034 / $07FA | Pass 0 skeleton |  |
| Toobin (U) | 128 KB | 64 KB | Horizontal | $F40C / $FE00 / $F486 | Pass 0 skeleton |  |
| Toobin (U) [a1] | 128 KB | 64 KB | Horizontal | $F40C / $FE00 / $F486 | Pass 0 skeleton |  |
| Top Gun - The Second Mission (U) | 128 KB | 128 KB | Vertical | $E8EF / $E87A / $03E9 | Pass 0 skeleton |  |
| Totally Rad (U) | 128 KB | 128 KB | Vertical | $E0BF / $E000 / $E19A | Pass 0 skeleton |  |
| Toxic Crusaders (U) | 128 KB | 128 KB | Vertical | $C47E / $FFD0 / $C525 | Pass 0 skeleton |  |
| Twin Cobra (U) | 128 KB | 128 KB | Vertical | $C000 / $FF00 / $51DF | Pass 0 skeleton |  |
| Ultimate Air Combat (U) | 256 KB | 256 KB | Vertical | $E0F8 / $E03F / $E137 | Pass 0 skeleton |  |
| Ultimate Basketball (U) | 128 KB | 128 KB | Vertical | $E2DD / $E12D / $FFF9 | Pass 0 skeleton |  |
| Uninvited (U) | 128 KB | 128 KB | Horizontal | $ECC7 / $E800 / $EB49 | Pass 0 skeleton |  |
| Vice - Project Doom (U) | 128 KB | 128 KB | Horizontal | $E5A2 / $E39E / $E1DA | Pass 0 skeleton |  |
| Vindicators (U) | 64 KB | 32 KB | Vertical | $FE83 / $FF11 / $FF11 | Pass 0 skeleton |  |
| WCW World Championship Wrestling (U) | 128 KB | 128 KB | Horizontal | $D3DF / $FFD8 / $D4CE | Pass 0 skeleton |  |
| WWF King of the Ring (U) | 128 KB | 256 KB | Horizontal | $FDD3 / $FDEF / $FF63 | Pass 0 skeleton |  |
| WWF Steel Cage Challenge (U) | 128 KB | 256 KB | Vertical | $C48B / $FF4F / $C4B7 | Pass 0 skeleton |  |
| Wacky Races (U) | 128 KB | 128 KB | Horizontal | $F86E / $F800 / $E54A | Pass 0 skeleton |  |
| Wario's Woods (U) | 256 KB | 256 KB | Horizontal | $C6BC / $FFB0 / $C710 | Pass 0 skeleton |  |
| Wayne's World (U) | 128 KB | 128 KB | Vertical | $D7E3 / $FE47 / $D93F | Pass 0 skeleton |  |
| Werewolf - The Last Warrior (U) | 128 KB | 128 KB | Horizontal | $C014 / $FF00 / $C077 | Pass 0 skeleton |  |
| Where in Time is Carmen Sandiego (U) | 128 KB | 256 KB | Vertical | $E1A5 / $E000 / $E3AB | Pass 0 skeleton |  |
| Where's Waldo (U) | 128 KB | 128 KB | Horizontal | $E237 / $E000 / $E468 | Pass 0 skeleton |  |
| Whomp'Em (U) | 128 KB | 128 KB | Horizontal | $FC20 / $FF01 / $FF00 | Pass 0 skeleton |  |
| Widget (U) | 128 KB | 128 KB | Vertical | $C103 / $FFC0 / $C106 | Pass 0 skeleton |  |
| Wizardry - The Knight of Diamonds (U) | 128 KB | 128 KB | Vertical | $F991 / $F95A / $FCF9 | Pass 0 skeleton | battery |
| Wolverine (U) | 128 KB | 128 KB | Horizontal | $07FD / $FF50 / $FCFF | Pass 0 skeleton |  |
| World Champ (U) [!] | 128 KB | 128 KB | Vertical | $C006 / $FFB0 / $C003 | Pass 0 skeleton |  |
| Wurm (U) | 128 KB | 128 KB | Vertical | $EB5F / $E000 / $EF0A | Pass 0 skeleton |  |
| Yoshi's Cookie (U) | 128 KB | 64 KB | Horizontal | $C5C8 / $F6DD / $D2E7 | Pass 0 skeleton |  |
| Young Indiana Jones Chronicles, The (U) | 128 KB | 128 KB | Vertical | $F900 / $FEC1 / $FB00 | Pass 0 skeleton |  |
| Zen Intergalactic Ninja (U) | 128 KB | 128 KB | Horizontal | $F5E4 / $F593 / $FCB8 | Pass 0 skeleton |  |
| Zombie Nation (U) | 128 KB | 128 KB | Vertical | $FAD4 / $FD2A / $FC4C | Pass 0 skeleton |  |

### `_wip/MMC5/` — mapper 5 (10 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Bandit Kings of Ancient China (U) | 256 KB | 128 KB | Horizontal | $F641 / $F500 / $FFD6 | Pass 0 skeleton |  |
| Bandit Kings of Ancient China (U) [a1] | 256 KB | 128 KB | Horizontal | $5485 / $00A9 / $5565 | Pass 0 skeleton |  |
| Castlevania 3 - Dracula's Curse (U) | 256 KB | 128 KB | Horizontal | $E053 / $E00B / $E11A | Pass 0 skeleton |  |
| Gemfire (U) | 256 KB | 256 KB | Horizontal | $F60C / $F500 / $FE9C | Pass 0 skeleton | battery |
| L'Empereur (U) | 256 KB | 128 KB | Horizontal | $F64C / $F500 / $FF47 | Pass 0 skeleton | battery |
| L'Empereur (U) [a1] | 256 KB | 128 KB | Horizontal | $F64C / $F500 / $FF47 | Pass 0 skeleton | battery |
| Laser Invasion (U) | 128 KB | 128 KB | Horizontal | $E072 / $E001 / $F010 | Pass 0 skeleton |  |
| Nobunaga's Ambition 2 (U) | 256 KB | 128 KB | Horizontal | $F641 / $F500 / $FF34 | Pass 0 skeleton | battery |
| Romance of the Three Kingdoms 2 (U) [!] | 256 KB | 256 KB | Horizontal | $F671 / $F500 / $FF66 | Pass 0 skeleton | battery |
| Uncharted Waters (U) | 512 KB | 128 KB | Horizontal | $F64C / $F500 / $FF3E | Pass 0 skeleton | battery |

### `_wip/NROM/` — mapper 0, 64 (35 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| 10-Yard Fight (U) | 32 KB | 8 KB | Horizontal | $8471 / $8000 / $84FF | Pass 1 |  |
| 1942 (JU) | 32 KB | 8 KB | Horizontal | $C030 / $BF90 / $BF90 | Pass 1 | header reads mapper 64 - see the note below |
| Chubby Cherub (U) | 32 KB | 8 KB | Vertical | $82B7 / $8000 / $8331 | Pass 1 |  |
| Circus Charlie | 16 KB | 8 KB | Horizontal | $C05A / $C000 / $C007 | Pass 0 skeleton | 127-byte footer |
| Dig Dug II (U) [!] | 32 KB | 8 KB | Vertical | $A749 / $A52D / $A52D | Pass 1 |  |
| Elevator Action (U) | 32 KB | 8 KB | Horizontal | $8081 / $8000 / $8000 | Pass 1 |  |
| Galaga (U) | 32 KB | 8 KB | Horizontal | $C0C8 / $C000 / $C000 | Pass 0 skeleton |  |
| Gyromite (JUE) | 32 KB | 8 KB | Vertical | $8079 / $8000 / $8000 | Pass 1 |  |
| Hydlide (U) | 32 KB | 8 KB | Horizontal | $8003 / $8000 / $8003 | Pass 1 |  |
| Ice Hockey (U) | 32 KB | 8 KB | Vertical | $805A / $8000 / $8000 | Pass 1 |  |
| Kung Fu (U) | 32 KB | 8 KB | Vertical | $82D6 / $8258 / $FFF0 | Pass 0 skeleton |  |
| Kung Fu (U) (a1) | 32 KB | 8 KB | Vertical | $82D6 / $8258 / $FFF0 | Pass 1 |  |
| Mach Rider (JU) | 32 KB | 8 KB | Horizontal | $8070 / $8000 / $8147 | Pass 1 | four-screen flag |
| Mach Rider (JU) (a1) | 32 KB | 8 KB | Horizontal | $8070 / $8000 / $8147 | Pass 1 | four-screen flag |
| Magmax (U) | 32 KB | 8 KB | Horizontal | $BD33 / $BC33 / $BC33 | Pass 0 skeleton |  |
| Magmax (U) (Prototype) | 32 KB | 8 KB | Horizontal | $BD33 / $BC33 / $BC33 | Pass 1 |  |
| Ms Pac-Man (Namco) (U) | 32 KB | 8 KB | Horizontal | $C107 / $FFF7 / $C198 | Pass 1 |  |
| Ms Pac-Man (U) | 32 KB | 8 KB | Horizontal | $FB86 / $FEE0 / $FBE1 | Pass 1 |  |
| NES Test Cart (Official Nintendo) (U) | 32 KB | 8 KB | Vertical | $8328 / $8370 / $8370 | Pass 1 |  |
| Othello (U) | 32 KB | 8 KB | Horizontal | $D6B4 / $8000 / $804E | Pass 1 |  |
| Pipe Dream (U) | 32 KB | 32 KB | Vertical | $8FEA / $8000 / $912B | Pass 1 |  |
| Port Test Cartridge (U) | 32 KB | none | Vertical | $CC49 / $C000 / $CC17 | Pass 1 |  |
| Pro Action Replay (No Cart Present) (U) | 32 KB | 8 KB | Horizontal | $0000 / $0000 / $0000 | Pass 1 | all vectors $0000 |
| Pro Action Replay (Rev B) (U) | 32 KB | 8 KB | Horizontal | $F021 / $808A / $F020 | Pass 1 |  |
| Seicross (U) | 32 KB | 8 KB | Vertical | $8858 / $8000 / $FD0E | Pass 1 |  |
| Slalom (U) | 32 KB | 8 KB | Vertical | $8123 / $8050 / $FEDF | Pass 1 |  |
| Soccer (JU) | 32 KB | 8 KB | Vertical | $809F / $8000 / $8000 | Pass 1 |  |
| Spelunker (U) [!] | 32 KB | 8 KB | Vertical | $84C6 / $8000 / $8513 | Pass 1 |  |
| Spy Vs Spy (U) | 32 KB | 8 KB | Horizontal | $8066 / $8000 / $FFC7 | Pass 1 |  |
| Sqoon (U) | 32 KB | 8 KB | Vertical | $8014 / $8000 / $80F1 | Pass 1 |  |
| Stack-Up (JU) | 32 KB | 8 KB | Horizontal | $81AD / $8100 / $81E6 | Pass 1 |  |
| Super Mario Bros (JU) (PRG 0) | 32 KB | 8 KB | Vertical | $8082 / $8000 / $FFF0 | Pass 1 |  |
| Super Mario Bros (JU) (PRG 1) | 32 KB | 8 KB | Vertical | $8082 / $8000 / $FFF0 | Pass 0 skeleton |  |
| Tag Team Wrestling (U) | 32 KB | 8 KB | Horizontal | $FFCD / $FD43 / $FD43 | Pass 1 |  |
| U-Force Test Cartridge (U) | 32 KB | 8 KB | Vertical | $844C / $8000 / $8000 | Pass 0 skeleton |  |

### `_wip/UNROM/` — mapper 2 (97 projects)

| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| 1943 (U) | 128 KB | none | Horizontal | $C226 / $C149 / $C235 | Pass 0 skeleton |  |
| 3-D Battles of World Runner, The (U) | 128 KB | none | Vertical | $FFC0 / $FF00 / $FEEC | Pass 0 skeleton |  |
| Alfred Chicken (U) | 128 KB | none | Horizontal | $C7E3 / $C5C6 / $C84A | Pass 0 skeleton |  |
| Amagon (U) | 128 KB | none | Vertical | $D8FE / $C06C / $FFF9 | Pass 0 skeleton |  |
| Amagon (U) [a1] | 128 KB | none | Vertical | $D8FE / $C06C / $FFF9 | Pass 0 skeleton |  |
| Amagon (U) [a2] | 128 KB | none | Vertical | $D8FE / $C06C / $FFF9 | Pass 0 skeleton |  |
| Archon (U) | 128 KB | none | Horizontal | $FB12 / $C008 / $FB12 | Pass 0 skeleton | four-screen flag |
| Athena (U) | 128 KB | none | Vertical | $C0CA / $C008 / $C008 | Pass 0 skeleton |  |
| Athena (U) [a1] | 128 KB | none | Vertical | $C0CA / $C008 / $C008 | Pass 0 skeleton |  |
| Best of the Best Championship Karate (U) | 256 KB | none | Vertical | $D110 / $CDDC / $CDDC | Pass 0 skeleton |  |
| Blades of Steel (U) | 128 KB | none | Vertical | $C204 / $C1C5 / $C266 | Pass 0 skeleton |  |
| Blues Brothers, The (U) | 128 KB | none | Vertical | $FC33 / $F499 / $F499 | Pass 0 skeleton |  |
| California Games (U) | 128 KB | none | Vertical | $FF88 / $FFB0 / $FFB0 | Pass 0 skeleton |  |
| California Games (U) [a1] | 128 KB | none | Vertical | $FF88 / $FFB0 / $FFB0 | Pass 0 skeleton |  |
| Casino Kid (U) | 128 KB | none | Horizontal | $E5FA / $C000 / $E608 | Pass 0 skeleton |  |
| Casino Kid 2 (U) | 128 KB | none | Horizontal | $EA74 / $C000 / $EA82 | Pass 0 skeleton |  |
| Castelian (U) | 128 KB | none | Vertical | $C008 / $C154 / $C991 | Pass 0 skeleton |  |
| Castle of Dragon (U) | 128 KB | none | Vertical | $C0F4 / $C000 / $C0D8 | Pass 0 skeleton |  |
| Castlevania (U) (PRG 0) | 128 KB | none | Vertical | $C052 / $C008 / $C0BB | Pass 0 skeleton |  |
| Castlevania (U) (PRG 1) | 128 KB | none | Vertical | $C052 / $C008 / $C0BF | Pass 0 skeleton |  |
| Championship Pool (U) | 128 KB | none | Vertical | $D73D / $E3E7 / $D880 | Pass 0 skeleton |  |
| Color A Dinosaur (U) | 128 KB | none | Vertical | $C161 / $C000 / $C15F | Pass 0 skeleton |  |
| Commando (U) | 128 KB | none | Horizontal | $C0AB / $C06D / $0000 | Pass 0 skeleton |  |
| Contra (U) | 128 KB | none | Vertical | $C060 / $C001 / $C0B5 | Pass 0 skeleton |  |
| Dick Tracy (U) | 128 KB | none | Vertical | $C7D2 / $C6A0 / $C966 | Pass 0 skeleton |  |
| Double Dribble (U) (PRG 0) | 128 KB | none | Vertical | $C036 / $C001 / $C08F | Pass 0 skeleton |  |
| Double Dribble (U) (PRG 1) [!] | 128 KB | none | Vertical | $C036 / $C001 / $C08F | Pass 0 skeleton |  |
| Dr Chaos (U) | 128 KB | none | Vertical | $C000 / $C815 / $0700 | Pass 0 skeleton |  |
| Duck Tales (U) | 128 KB | none | Vertical | $C000 / $FEE0 / $C000 | Pass 0 skeleton |  |
| Duck Tales (U) (Prototype) | 128 KB | none | Vertical | $C000 / $FEE0 / $C000 | Pass 0 skeleton |  |
| Duck Tales 2 (U) | 128 KB | none | Vertical | $C651 / $C088 / $C088 | Pass 0 skeleton |  |
| Fantastic Adventures of Dizzy, The (1993 Version) (U) | 256 KB | none | Vertical | $C007 / $C02D / $FFF9 | Pass 0 skeleton |  |
| Fantastic Adventures of Dizzy, The (Aladdin) (UE) | 256 KB | none | Vertical | $C007 / $EE20 / $FFF9 | Pass 0 skeleton |  |
| Fist of the North Star (U) | 128 KB | none | Vertical | $CE32 / $C000 / $CEDF | Pass 0 skeleton |  |
| Flight of the Intruder (U) | 128 KB | none | Vertical | $C600 / $C000 / $C68B | Pass 0 skeleton |  |
| Flying Dragon - The Secret Scroll (U) | 128 KB | none | Vertical | $C171 / $C118 / $C118 | Pass 0 skeleton |  |
| Fun House (U) | 128 KB | none | Vertical | $C436 / $C3D4 / $C54B | Pass 0 skeleton |  |
| Ghosts'n Goblins (U) | 128 KB | none | Vertical | $C0F0 / $C008 / $C008 | Pass 0 skeleton |  |
| Goonies 2, The (U) | 128 KB | none | Vertical | $C07C / $C008 / $C0C9 | Pass 0 skeleton |  |
| Goonies 2, The (U) [a1] | 128 KB | none | Vertical | $C07C / $C008 / $C0C9 | Pass 0 skeleton |  |
| Guardian Legend, The (U) | 128 KB | none | Vertical | $DC75 / $FEDE / $DCF3 | Pass 0 skeleton |  |
| Gun Smoke (U) | 128 KB | none | Horizontal | $E4C6 / $E651 / $E4C6 | Pass 0 skeleton |  |
| Hero Quest (U) (Prototype) [!] | 128 KB | none | Horizontal | $C078 / $C000 / $C13D | Pass 0 skeleton |  |
| Ikari Warriors (U) (PRG 0) | 128 KB | none | Horizontal | $C0C6 / $C008 / $61E3 | Pass 0 skeleton |  |
| Ikari Warriors (U) (PRG 1) [!] | 128 KB | none | Horizontal | $C0C6 / $C008 / $61E3 | Pass 0 skeleton |  |
| Indiana Jones and the Last Crusade (UBI Soft) (U) | 128 KB | none | Horizontal | $FF01 / $C014 / $FFD6 | Pass 0 skeleton |  |
| Jack Nicklaus' Greatest 18 Holes of Champ. Golf (U) | 128 KB | none | Vertical | $C04A / $C001 / $C0C0 | Pass 0 skeleton |  |
| Jackal (U) [a1] | 128 KB | none | Vertical | $C292 / $C23D / $C2EA | Pass 0 skeleton |  |
| Jimmy Connor's Tennis (U) | 128 KB | none | Horizontal | $C100 / $FEE1 / $FF58 | Pass 0 skeleton |  |
| Jordan Vs Bird - One On One (U) | 128 KB | none | Vertical | $C079 / $C000 / $C077 | Pass 0 skeleton |  |
| Klash Ball (U) | 128 KB | none | Horizontal | $ED83 / $C000 / $EE0C | Pass 0 skeleton |  |
| Lifeforce (U) | 128 KB | none | Vertical | $E76B / $E70A / $E7D1 | Pass 0 skeleton |  |
| Marvel's X-Men (U) | 128 KB | none | Vertical | $C006 / $FFB0 / $C003 | Pass 0 skeleton |  |
| Marvel's X-Men (U) [a1] | 128 KB | none | Vertical | $C006 / $FFB0 / $C003 | Pass 0 skeleton |  |
| Metal Gear (U) | 128 KB | none | Vertical | $C06C / $C008 / $C006 | Pass 0 skeleton |  |
| Micro Machines (U) | 256 KB | none | Vertical | $0300 / $F750 / $FFFF | Pass 0 skeleton |  |
| Paperboy 2 (U) | 256 KB | none | Horizontal | $CA2E / $CA69 / $CA68 | Pass 0 skeleton |  |
| Prince of Persia (U) | 128 KB | none | Vertical | $FF13 / $C008 / $FFEF | Pass 0 skeleton |  |
| Prince of Persia (U) [a1] | 128 KB | none | Vertical | $FF13 / $C008 / $FFEF | Pass 0 skeleton |  |
| Prince of Persia (U) [a2] | 128 KB | none | Vertical | $FF13 / $C008 / $FFEF | Pass 0 skeleton |  |
| Pro Wrestling (U) | 128 KB | none | Vertical | $FCBC / $FBB0 / $FFF0 | Pass 0 skeleton |  |
| Puss 'n Boots - Pero's Great Adventure (U) | 128 KB | none | Vertical | $D51E / $C013 / $D648 | Pass 0 skeleton |  |
| Quattro Adventure (Aladdin) (U) | 256 KB | none | Vertical | $C007 / $C00A / $0000 | Pass 0 skeleton |  |
| Rainbow Islands - The Story of Bubble Bobble 2 (U) | 128 KB | none | Horizontal | $E74C / $DE59 / $E796 | Pass 0 skeleton |  |
| Rally Bike (U) | 128 KB | none | Vertical | $C089 / $C008 / $D244 | Pass 0 skeleton |  |
| Rambo (U) | 128 KB | none | Vertical | $EE55 / $C000 / $C000 | Pass 0 skeleton |  |
| Renegade (U) | 128 KB | none | Vertical | $FE71 / $FE98 / $D600 | Pass 0 skeleton |  |
| Robo Warrior (U) | 128 KB | none | Vertical | $CF75 / $C0D0 / $FFF9 | Pass 0 skeleton |  |
| Rygar (U) | 128 KB | none | Vertical | $C0F6 / $C000 / $C0F6 | Pass 0 skeleton |  |
| Section Z (U) | 128 KB | none | Vertical | $C45F / $C403 / $C518 | Pass 0 skeleton |  |
| Silent Service (U) | 128 KB | none | Vertical | $ED89 / $C020 / $EDAF | Pass 0 skeleton |  |
| Silent Service (U) [a1] | 128 KB | none | Vertical | $ED89 / $C020 / $EDAF | Pass 0 skeleton |  |
| Skate or Die! (U) [a1] | 128 KB | none | Vertical | $C072 / $C001 / $C0E2 | Pass 0 skeleton |  |
| Star Trek - The Next Generation (U) | 128 KB | none | Horizontal | $C11F / $FFF1 / $C19E | Pass 0 skeleton |  |
| Starship Hector (U) | 128 KB | none | Vertical | $D99C / $D6A5 / $D9DF | Pass 0 skeleton |  |
| Stinger (U) | 128 KB | none | Vertical | $C000 / $C078 / $C05E | Pass 0 skeleton |  |
| Super Cars (U) | 128 KB | none | Horizontal | $C6E0 / $C000 / $0000 | Pass 0 skeleton |  |
| Super Glove Ball (U) | 128 KB | none | Vertical | $FE03 / $C032 / $F791 | Pass 0 skeleton |  |
| Super Pitfall (U) | 128 KB | none | Vertical | $C0F3 / $C020 / $61E3 | Pass 0 skeleton |  |
| Swords and Serpents (U) | 128 KB | none | Vertical | $C0B4 / $C049 / $C047 | Pass 0 skeleton |  |
| Swords and Serpents (U) [a1] | 128 KB | none | Vertical | $C0B4 / $C049 / $C047 | Pass 0 skeleton | 128-byte footer |
| Terra Cresta (U) | 128 KB | none | Horizontal | $C709 / $C494 / $C494 | Pass 0 skeleton |  |
| Thundercade (U) | 128 KB | none | Horizontal | $C0B1 / $C008 / $C008 | Pass 0 skeleton |  |
| Times of Lore (U) | 128 KB | none | Vertical | $C26B / $C000 / $C30B | Pass 0 skeleton |  |
| Top Gun (U) | 128 KB | none | Horizontal | $EA8A / $EA23 / $EB04 | Pass 0 skeleton |  |
| Total Recall (U) | 128 KB | none | Horizontal | $C093 / $C196 / $C182 | Pass 0 skeleton |  |
| Trog (U) | 128 KB | none | Vertical | $F008 / $C06F / $C06F | Pass 0 skeleton |  |
| Trojan (U) | 128 KB | none | Vertical | $C16A / $C0F5 / $C0F5 | Pass 0 skeleton |  |
| Trojan (U) [a1] | 128 KB | none | Vertical | $DE0D / $1880 / $3CA2 | Pass 0 skeleton |  |
| Twin Eagle (U) | 128 KB | none | Vertical | $C10D / $FFC0 / $C0E1 | Pass 0 skeleton |  |
| Ultimate Stuntman (U) | 256 KB | none | Vertical | $CB61 / $C004 / $C004 | Pass 0 skeleton |  |
| WWF Wrestlemania Challenge (U) | 128 KB | none | Vertical | $C000 / $FFCD / $C018 | Pass 0 skeleton |  |
| Wall Street Kid (U) | 128 KB | none | Horizontal | $F95C / $C000 / $F9E2 | Pass 0 skeleton |  |
| Wall Street Kid (U) [a1] | 128 KB | none | Horizontal | $F95C / $C000 / $F9E2 | Pass 0 skeleton | 65536-byte footer |
| Wall Street Kid (U) [a2] | 128 KB | none | Horizontal | $F95C / $C000 / $F9E2 | Pass 0 skeleton | 65536-byte footer |
| Wayne Gretzky Hockey (U) | 128 KB | none | Vertical | $C10A / $C000 / $C378 | Pass 0 skeleton |  |
| Winter Games (U) | 128 KB | none | Horizontal | $06FB / $C040 / $E295 | Pass 0 skeleton |  |
All 851 projects, all **byte-identical for the whole ROM**.


---

## 7. The special cases

### 7.1 Almost all of the tier is a banked mapper

Only 34 of the 851 are mapper 0, and only **two** have a PRG small enough to
sit at a single CPU address:

| PRG size | Projects |
|----------|----------|
| 16 KB | 1 — `Circus Charlie` |
| 32 KB | 149 |
| 64 KB | 42 |
| 128 KB | 522 |
| 256 KB | 127 |
| 512 KB | 10 |
| 1536 KB | 1 — `Action 52 (U) [!]` |

Everything else is a banked mapper — MMC1 (221), MMC3 (239), UNROM (97),
Color Dreams (40), AxROM (39), the Codemasters family (45) and so on. Pass 1
on any of those is a *per-bank* job: the tracer needs to know which bank is
mapped where before it can decide what is code.

### 7.2 A quarter of the tier has no CHR

226 projects declare zero CHR banks — the mapper supplies CHR RAM instead.
There is no `chr.bin`, no `chr.s`, and the linker has no CHR area — a CHR
area with `fill = yes` and no segment would emit zero padding and break
byte-identity. `Port Test Cartridge (U)` and `Videomation (U)` are two of
them; so are `Mega Man (U)`, `Castlevania (U) (PRG 0)`, `Metroid (U)` and
every other MMC1 title in the store.

### 7.3 Six ROMs have trailing bytes the header does not account for

| Project | Trailing bytes | What they look like |
|---------|----------------|---------------------|
| `Circus Charlie` | 127 | the text `Circus Charlie - Damaged Cybernetics`, then zero padding |
| `Crystalis (U) [a1]` | 127 | a 127-byte footer |
| `Ninja Gaiden (U) [a2]` | 128 | a 128-byte footer |
| `Swords and Serpents (U) [a1]` | 128 | a 128-byte footer |
| `Wall Street Kid (U) [a1]` | 65536 | 64 KB of graphics data |
| `Wall Street Kid (U) [a2]` | 65536 | 64 KB of graphics data |

The generator emits a fourth memory area for them:

```
TRAILER: start = $0000, size = $007F, fill = yes;
```

The two `Wall Street Kid` dumps are a different matter: their header declares
**zero** CHR banks and 8 PRG banks, and the file is 196,624 bytes — 64 KB
more than the header accounts for. The trailing 64 KB is plainly graphics
data, so the header's size fields are wrong (either the CHR count should be
8, or the PRG count 12). The skeleton reproduces the file exactly either
way, but **do not assume the header's size fields are right for these two**
— a Pass 1 on them has to decide which reading is correct first.

### 7.4 Some projects have odd header bytes

| Project | byte 6 | byte 7 | What it means |
|---------|--------|--------|---------------|
| `1942 (JU)` | `$00` | `$44` | Bytes 7-15 spell `DiskDude!` — ASCII overwrote the mapper's upper nybble, so the header *reads* mapper 64 when the intended mapper is 0. |
| `Mach Rider (JU)`, `(a1)` | `$08` | `$00` | Bit 3 (four-screen VRAM) is set on a mapper-0 image. |
| `Pro Action Replay (No Cart Present) (U)` | `$00` | `$00` | All three vectors are `$0000` — the image carries no vector table. Its code starts at `$8000` with `SEI / CLD / LDA #$50 / STA $2000`, and a `JMP $8000` plus the string `IMAGINEER` sit near the end of the PRG, so it is a loader image rather than a self-booting cartridge. |

None of this affects byte-identity — the header is included verbatim — but
all three change what Pass 1 has to do.

**Byte 7's lower nybble is non-zero on 58 of the 851 ROMs**, and this is
almost always a watermark rather than a header field. 55 of them carry the
literal string `DiskDude!` at bytes 7-15, two more carry `DisNi0330`, and one
(`Hot Slot (UE)`) carries `byKH+KEN`. Since `'D'` is `$44`, byte 7 picks up
`$4` in its lower nybble. **Only byte 7's *upper* nybble carries mapper
bits**, so these ROMs still read the mapper they are filed under — the noise
is in the bits the mapper does not use.

**Twelve ROMs set the four-screen bit (byte 6 bit 3).** Four of them sit on
boards that support four-screen VRAM (`MAPPER73/Punch-Out!! (U)` and the
three MMC3 titles `Gauntlet (U)`, `Gauntlet 2 (U)` and `King's Quest V (U)`).
The other eight sit on boards that do not — `Demon Sword (U)`,
`Muppet Adventure - Chaos at the Carnival (U)` and `RoadBlasters (U)` on
mapper 65, `Back to the Future 2 & 3 (U)` and `Ghoul School (U)` on MMC1,
`Archon (U)` on mapper 2, and the two `Mach Rider` dumps on mapper 0. Every
one of the twelve is flagged `four-screen flag` in the inventory above.

### 7.5 The vectors are not always in the last bank

`nesdis.py` reads the vectors from the last six bytes of the PRG image,
which is correct for the common layouts (the fixed bank is the last one in
the file) but not for every mapper here. A project whose vectors do not
resolve to plausible code needs its seeds supplied by hand with
`--extra-seed`.

## 8. Open work, per project

Every Pass 0 project owes the same three passes. `AGENTS.md` fixes the order:
Pass 1 is the code/data split and stops for review; Pass 2 replaces
address-derived labels; Pass 3 names data tables and structures. Skipping
straight to a guessy rewrite is not allowed.

### Pass 1 — the code/data split

```
python3 _tools/nesdis.py --prg prg.bin --base 0x8000 \
    --project "<name>" --out prg.s --locals locals.inc
```

`--base 0x8000` for a 32 KB NROM-256 PRG; a banked image needs its banks
traced separately, because the whole image does not sit at one address.

Requirements for the emitted `prg.s`:

- Every instruction carries the canonical audit comment
  `; CPU:$C123 PRG:0123  AD 21 03`, starting at **column 35**.
- Unreached bytes stay as explicit `.byte` / `.incbin` blocks with their ROM
  provenance. Nothing is deleted or reformatted.
- Re-align the comments after any Pass 3 substitution with
  `_tools/align_audit_comments.py` — it is whitespace-only and cannot change
  the bytes.

Known traps for this tier specifically:

- **A plain vector trace reaches only ~15% of a real game.** Most code sits
  behind computed dispatch. Look for `jmp ($xx)`, and for dispatchers that
  pop the table address with `pla`. `--auto-seed` plus a couple of
  `--extra-seed` addresses took `Mario Bros (JU)` from 14.6% to 72.2%.
- **Declare the dispatch table and the tracer will follow it.** A 16-entry
  game-state table that the tracer cannot see is the single biggest loss of
  coverage in this tier: the promoted `Volleyball (U)` needed
  `--table 85E1:11`, without which only 66 % of the image traced. The same
  applies to the Mesen Code Data Logger capture, which is what promoted
  1,757 further bytes from data to code there.
- **Control-flow targets must win over fall-through.** A fall-through decode
  whose operand spans an address another path branches to is the wrong decode.
- **Branch targets inside a surviving instruction must be pruned** from the
  target set, or the label is referenced but never defined and the file does
  not assemble at all.
- **Undocumented opcodes silently truncate a trace.** `nesdis.py
  --undocumented` decodes all 105; the default is **off**, so the trace must
  be re-run with it before Pass 1 is called done. ca65 implements none of
  them, so they stay as explicit `.byte` with the disassembly in the comment.
- **RESET and IRQ are usually the same address.** The semantic-name map must
  not overwrite on collision, or the primary entry gets renamed `IrqHandler`.
- `Pro Action Replay (No Cart Present) (U)` has no vectors at all — seed it
  by hand with `--extra-seed 0x8000`.

### Pass 2 — labels

Replace the address-derived `Label_XXXX` definitions and every raw `$XXXX`
call operand. `_tools/apply_pass2_map.py` applies a map;
`_tools/derive_branch_names.py` derives the internal branch-target names.
`Golf (JU)` (promoted to `NROM/Golf (JU)` on 2026-10-21) was the worked
example: 108 of 112 subroutine entries
named, but still carrying hundreds of internal `Label_` branch targets.

### Pass 3 — data and semantics

Semantic zero-page aliases, applied **only at the sites where the role is
proven** (`_tools/apply_zp_aliases.py`), and named data tables. Addresses
whose role is not yet determined keep the neutral `ZpXX` form.

### Per-project notes

- **`Golf (JU)`** — promoted to `NROM/Golf (JU)` on 2026-10-21: 4,217
  instructions over 13,541 lines of `prg.s`, all 349 internal branch targets
  named (339 derived + 10 fall-through-only), audit comments converted to the
  canonical `; CPU:$XXXX PRG:XXXX  AA BB` form at column 35, and the project
  `README.md` rewritten. Its whole-ROM compare verifies byte-identical.
- **`Volleyball (U)`** — promoted to `NROM/Volleyball (U)` on 2026-10-21.
  Pass 1, Pass 2 and Pass 3 were complete on 2026-10-20: 11,395 instructions /
  23,926 code bytes (73.0 %), 8,842 data bytes, **0 unclassified**.  The split
  needed the game state dispatch table at `$85E1` declared to the tracer
  (`--table 85E1:11`) — without it only 66 % of the image is traced — and a
  Mesen Code Data Logger capture taken while a random-input bot played the
  attract demo, which promoted 1,757 bytes from data to code.  Pass 2 named
  all 1,989 labels: 730 read out of the code by hand, 1,221 internal branch
  targets derived mechanically, leaving zero `Label_XXXX` and zero raw `$XXXX`
  call or branch operands.  Pass 3 named the zero page, the `$0500` ball
  structure and all 37 data blocks, and `apply_symbols.py --report` reports
  zero multi-alias residue.  The project `README.md` has the power-on flow
  analysis (the whole game runs from the NMI handler) and the Pass 3
  data-table inventory.  The only residue is the mapping of the ten
  near-identical per-nation copies of the player movement and ball routines
  onto the ten selectable nations.
- Every other project starts from zero.

## 9. Promoting a project

1. `git mv "_wip/<MAPPER>/<name>" "<MAPPER>/<name>"` — the folders are
   already flat, so nothing moves inside.
2. Confirm the whole-ROM compare still passes after the move.
3. Update the root `README.md` inventory (the row moves from this file to
   `README.md`), `TODO.md` and `AGENTS.md`.
4. No `_tools` path change is needed: both tiers sit two levels deep, so
   `../../_tools/` is correct either way.
5. **Remove the `_wip/` folder afterwards.** `git mv` only moves the *tracked*
   files, so the old folder survives with its untracked build artifacts
   (`*.o`, `reconstructed.nes`, `reconstructed.lbl`, `reconstructed.map`) and
   sometimes with a stale `README.md` left behind. A leftover folder counts
   as a project in every "how many projects are in this tier" tally while
   having no source to build — `Xevious (U)` and `Zanac (U)` both left one
   behind on 2026-10-20, and both were cleaned up on 2026-10-21.

## 10. Tooling

`_tools/make_skeleton.py` created every Pass 0 skeleton in this tier:

```
python3 _tools/make_skeleton.py "_wip/MMC3/Battletoads (U)" ...
```

It reads the `.nes`, splits it into `header.bin` / `prg.bin` / `chr.bin` /
`trailer.bin`, writes the ca65 sources, the linker config, the Makefile, the
symbols/locals includes and the project README, and copies the ROM to
`rom.nes`. It is idempotent and **refuses to overwrite** an existing `prg.s`,
`Makefile`, `linker.cfg`, `symbols.inc` or `locals.inc` unless `--force` is
given — that guard is what stopped it from flattening `Golf (JU)`'s real
disassembly.

**The generator's mirroring value was wrong until 2026-10-21.** It masked
header byte 6 with `0x03`, so the *battery* bit (bit 1) leaked into the
mirroring value and every battery-backed ROM's README claimed
`Mirroring | Four-screen` while its own `Four-screen VRAM` row said `no`.
The mask is now `0x01`, and the 56 affected per-project READMEs were
corrected in place. The rule the repo follows is the one `AGENTS.md` fixes:
**mirroring is byte 6 bit 0** (`0` = Horizontal, `1` = Vertical), the
four-screen fact is byte 6 bit 3 and has its own row, and the battery flag
is byte 6 bit 1.

`--layout` picks the linker layout: `flat` (the default, and what this tier
uses) places the memory areas at `.nes` file offsets and works for any ROM
size; `cpu` places the PRG area at the CPU address it is mapped at, which is
only possible for a 16 KB or 32 KB PRG.

Two rules it encodes that are easy to get wrong by hand:

- **ld65 writes the output file in MEMORY *declaration* order, not address
  order.** The areas must be declared in the order the bytes appear in the
  `.nes` file: `HEADER, PRG, CHR, TRAILER`.
- **Memory area sizes are hexadecimal.** `size = $127` is 295 bytes, not 127.
  The footer size is `$007F`.