Static recompilation of Mega Man 3 (NES) for native PC. Built with the NESRecomp framework.
Status: Work in progress. Title screen, robot master select, and basic stage gameplay are functional. Boss fights, passwords, and special weapons are untested and may softlock. Visual gaps are expected. If you find a bug, please open an issue.
- Title screen
- Main menu (GAME START / PASS WORD selection)
- Robot master stage select screen and navigation
- Loading into stages with background scrolling and basic enemies
- Player movement, jumping, and the Mega Buster
- Boss fights are untested and likely to stall or softlock
- Special weapons are untested
- Passwords are untested
- Visual elements may have minor glitches or missing sprites in some areas
- Audio is basic (APU register writes are captured but full audio mixing is work-in-progress)
- Download the latest release from Releases
- Extract and run
MegaMan3Recomp.exe - Select your Mega Man 3 (USA) ROM when prompted — the path is saved for future launches
| NES Button | Keyboard |
|---|---|
| D-Pad | Arrow keys |
| A | Z |
| B | X |
| Start | Enter |
| Select | Tab |
| Hotkey | Action |
|---|---|
| F5 | Toggle turbo (fast-forward) |
| F6 | Save state |
| F7 | Load state |
Requires Visual Studio 2022 and CMake 3.20+.
git clone https://github.com/mstan/Megaman3NESRecomp
cd Megaman3NESRecomp
# Windows
setup.bat
# Linux / macOS
chmod +x setup.sh && ./setup.shThis clones nesrecomp at the exact
version pinned in nesrecomp.pin and links the Nestopia oracle core.
Then build:
cmake -S . -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config ReleasePlace your Mega Man 3 (USA) ROM in the build directory or select it at runtime.
This is a static recompiler, not an emulator. The original 6502 machine code is translated to C at build time, then compiled to native x64. The NES PPU, APU, and mapper are simulated by the runner library.
- Mapper: MMC3 (Mapper 4) with PRG/CHR bank switching and scanline IRQ
- Framework: nesrecomp — shared across multiple NES recomp projects
game.toml— recompiler configuration (dispatch tables, extra functions, data regions)extras.c— game-specific hooks (coroutine scheduler, TCP debug interface)generated/— auto-generated C code (do not edit manually)nesrecomp/— framework submodule (recompiler + runner)