| Monster Party Prototype Restoration | Cubivore10 | Monster Party | Action > Platformer | NES | G, L | Improvement | 1.0 | 03 Jan 2013 |
| Monster Party MMC5 Patch | Dracula X | Monster Party | Action > Platformer | NES | O | Improvement | 1.2.0 | 31 Oct 2021 |
| Monster Hunter Freedom Unite Complete | IncognitoMan | Monster Hunter Portable 2nd G | Role Playing > Action RPG | PSP | G, S, T, GP, O | Improvement | 1.3.1 | 27 Mar 2023 |
| Moltov Mario World | Moltov | Super Mario World | Action > Platformer | SNES | L, T | Complete | Final | 01 Jan 2010 |
| Mole Mania - sgb2 music tempo fix | Radiant_Nighte | Mole Mania | Puzzle | GB | O | Bug Fix | 0.1 | 13 Sep 2022 |
| Moémon Mega FireRed | Moemon Project | Pokémon: FireRed Version | Role Playing | GBA | G, L, T, GP, O | Improvement | 1.4c | 21 Aug 2023 |
| Modern Move Shortcut Style | XModxGodX | Pokémon Mystery Dungeon: Blue Rescue Team | Strategy > Turn Based | NDS | GP | Improvement | 1.0 | 19 Nov 2023 |
| Mobile Suit Gundam: Federation vs. Zeon & DX Voice Mod | Rolly | Mobile Suit Gundam: Earth Federation vs. Zeon | Action > Beat 'Em Up | DC | S | Improvement | 1.0.0 | 08 Jun 2020 |
| MMZ2 - Colored Forehead Gem | Meta_X | Mega Man Zero 2 | Action > Platformer | GBA | G | Improvement | 1.0 | 12 Jun 2020 |
| MMZ1 Omega Recolor | Serbagz | Mega Man Zero | Action > Platformer | GBA | G | Complete | 1.0 | 10 Apr 2023 |
| MMX3 Skip Intro with Assembly | pianohombre | Mega Man X3 | Action > Platformer | SNES | T, GP | Improvement | 1.0 | 24 Jul 2017 |
| MMX2 Skip Intro with Assembly | pianohombre | Mega Man X2 | Action > Platformer | SNES | T, GP | Improvement | 1.0 | 24 Jul 2017 |
| MMX Skip Intro with Assembly | pianohombre | Mega Man X | Action > Platformer | SNES | T, GP | Improvement | 1.0 | 16 Jul 2017 |
| MMV: Refill weapons after death (DX compatible) | Tobias V. Langhoff | Mega Man V | Action > Platformer | GB | GP | Improvement | 1.0 | 08 Apr 2023 |
| MMI: Refill weapons after death (GBC compatible) | Tobias V. Langhoff | Mega Man: Dr. Wily's Revenge | Action > Platformer | GB | GP | Improvement | 1.0 | 09 Apr 2023 |
| MMC3 Ufouria The Saga PAL DPCM to NTSC DPCM | Heemin | U-four-ia: The Saga | Action > Platformer | NES | S | Complete | 1.0 | 11 Mar 2023 |
| MMBN4 bug fix | Exeguy11 | Mega Man Battle Network 4: Red Sun | Role Playing > Action RPG | GBA | T, O | Bug Fix | 1.1 | 13 Dec 2014 |
| MM7 Player Update | X.M.Hunter | Mega Man 7 | Action > Platformer | SNES | G | Improvement | 1.0 | 04 Sep 2023 |
| MM6 - Charge Shot Sound Fade Out | MetHy | Mega Man 6 | Action > Platformer | NES | S | Improvement | 1.0 | 14 Apr 2020 |
| MM5 Protoman Edition Optional | injoon84 | Mega Man 5 | Action > Platformer | NES | G | Addendum | 1.1 | 09 Sep 2021 |
