Metroid

NES

A static recompilation of the NES Metroid with nesrecomp, the author’s own framework: the ROM’s 6502 code is translated to C and compiled to native code, and the PPU, APU, and MMC1 mapper are simulated by the runtime library. Symbols and data regions come from the m1disasm disassembly. It saves through the game’s password system. As optional, experimental mods it has adaptive widescreen (fit to window, 16:9, 21:9, or 32:9) that shows the neighboring rooms, with options to activate enemies and items in the wider view, raise the sprite limit, and reduce slowdown, plus a first-person Voxel 3D view. Version 0.2.1 (October 18) extended native coverage on the US version: with assistance, the Kraid and Ridley victories, damage to Mother Brain, the escape timer, the ending, and the credits were checked, though the full escape run is separate. Version 0.2.3 (October 19) is published for the US ROM on 64-bit Windows; the European (PAL) version is built from source, and 0.2.0 also shipped a ZIP for it. For building with the previous backend, the repository includes the C code generated from the US ROM (about 17 MB). 59 of its last 100 commits list Claude as a co-author.

You needYour own Metroid ROM for NES: the US one (headerless CRC32 70080810) for the download, or the European one (headerless CRC32 7751588D) if you build the PAL version. Plus 64-bit Windows.

How it gets to PC

Static recompilation

Console

Nintendo Entertainment System / Famicom

Architecture

6502

Author

mstan

Original studio

Nintendo R&D1 / Intelligent Systems

Year

1986

Stars

32

Last activity

2026-11-06 · 5 days ago

Latest version

v0.2.5 · 2026-11-01

Language

C

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