Recomp / Games / NES

SMW NES Disassembly

Work-in-progress, shiftable disassembly of the unlicensed Famicom version of Super Mario World made by Hummer Team; much of the code is still undocumented.

Matching decomp Human-led wip
Stars19
Commits, 30 days2
Latest release—
Last pushOct 16, 2026

GitHub figures as of 2026-10-18, refreshed daily.

Facts

Original
Super Mario World (Hummer Team unlicensed Famicom port)
Platform
NES
Method
Matching decomp
Provenance
Human-led · Repo created 2020, predates AI coding tools (GitHub) what this means
Status
wip
Licence
CC0-1.0
Team
palaceswitcher
Started
2020-11
Needs the original
Yes: you supply your own legally obtained copy

How to get it legally

This project ships code only. Build or download it from the official repository, then supply data from a copy of Super Mario World (Hummer Team unlicensed Famicom port) you own. Recomp never links to ROMs, discs or game data.

This project was decompiled by palaceswitcher. Facts last checked 2026-10-17. Suggest a correction

Sources

Something wrong or out of date? Send a correction.

+5 ★ in 4 days

SNES · 1990 · ★ 644

smw (Super Mario World)

Super Mario World

A reverse-engineered C reimplementation of Super Mario World, playable start to finish, that extracts levels and graphics once from your own ROM.

Rewrite Not stated
▶ Playable

SNES · 1990 · ★ 0

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Super Mario World

Super Mario World from the snesrev C reimplementation compiled to WebAssembly, with every graphic and sound regenerated so no ROM is needed.

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Decompilation Human-led

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The Legend of Zelda: A Link to the Past and Four Swords

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Decompilation Human-led
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Alex Kidd in Miracle World

Disassembly project documenting the code of the original Alex Kidd in Miracle World.

Decompilation Human-led

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Decompilation Not stated