NESNES · 1991 · action platformer
Mega Man 4
Mega Man 4 (NES, 1991) has a full disassembly, refreshing-lemonade/megaman4-disassembly, and 3 other public projects, including a decompilation.
Data checked 2026-10-12 · unbaked registry
Projects
Disassemblyxkas-plus29 starspushed 2020-12-23no license
Full disassembly of Mega Man 4 (NES)
100% complete code+data, assembles to clean ROM ()
DisassemblyNESASM6 starspushed 2023-04-20no license
Disassembly of Mega Man 4
Southbird's Mega Man 4 disassembly ()
Disassemblyasm1 starspushed 2026-08-05no license
Disassembly of Mega Man 4
Disassembly of Mega Man 4 ()
Decomp0 starspushed 2026-07-27MIT license
Annotated ca65 disassembly of Mega Man 4 (NES)
Annotated ca65 disassembly of Mega Man 4 (NES); no GitHub releases; repo created 2026-02-27
What you need
You need your own copy of the game: these projects ship code only.
Same toolchain
GameMethodYearStarsLast push
NESSuper Mario Bros.Source releaseMatching decomp+719853.2k2026-10-07ARCPac-ManSource releaseMatching decomp+519805942026-10-10ARCWizard of WorSource releaseDisassembly19805142026-09-20NESTetrisStatic recompReimplementation+319892822026-09-30NESThe Legend of ZeldaMatching decompStatic recomp+319862752026-10-07BBCEliteSource releaseDecomp+219844882026-10-10ARCContraReimplementationDisassembly+119872312026-06-14SNESEarthBoundMatching decompDecomp+419941832026-10-12More on NES
GameMethodYearStarsLast push
NESSuper Mario Bros. 3Disassembly19882472025-05-01NESFinal FantasyReimplementationSource port+119871062026-10-02NESZelda II: The Adventure of LinkStatic recompReimplementation+119871752026-10-10NESDragon WarriorDisassembly1986882023-08-05NESNova the SquirrelSource release20182382025-12-09NESCastlevaniaSource portDisassembly+11986372026-09-15NESSuper Mario Bros.: The Lost LevelsStatic recompDisassembly1986152026-09-30NESMike Tyson's Punch-Out!!ReimplementationDisassembly+11987462020-09-13GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.