| MMX Skip Intro with Assembly | pianohombre | Mega Man X | Action > Platformer | SNES | T, GP | Improvement | 1.0 | 16 Jul 2017 |
| 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 |
| MM6 - Charge Shot Sound Fade Out | MetHy | Mega Man 6 | Action > Platformer | NES | S | Improvement | 1.0 | 14 Apr 2020 |
| MM5 - Charge Shot Sound Fade Out | MetHy | Mega Man 5 | Action > Platformer | NES | S | Improvement | 1.0 | 14 Apr 2020 |
| MM4 deRNG | StagShot | Mega Man 4 | Action > Platformer | NES | T, GP | Improvement | 2.0 | 24 Aug 2020 |
| MM4 - Charge Shot Sound Fade Out | MetHy | Mega Man 4 | Action > Platformer | NES | S | Improvement | 1.0 | 17 Apr 2020 |
| MKDS N64 Circuit | N64 Arctus | Mario Kart DS | Racing | NDS | G, L | Complete | 1.51 | 11 Feb 2017 |
| MKDS - Mario Kart 0 | szymbar | Mario Kart DS | Racing | NDS | G, S, L, T | Complete | 1.3 | 30 Jun 2015 |
| MK1 Text Clean Up | OhBuddy | Mortal Kombat | Action > Fighting | GEN | T | Improvement | 1.0 | 24 Jul 2019 |
| Misty Chronicles | Peto Translations | Pokémon: Gold Version | Role Playing | GB | G, L, T, GP | Complete | 1.2 | 12 Jan 2001 |
| Mission: Hurry Up, Mario Bros. | user123123 | New Super Mario Bros. | Action > Platformer | NDS | G, S, L, T, GP, O | Complete | 1.1 | 12 Jan 2018 |
| Missile Door Hack | Trunaur68 | Metroid: Zero Mission | Action > Platformer | GBA | GP | Improvement | 1.0 | 07 Dec 2007 |
| Mirror Zelda | Azeryn | The Legend of Zelda | Action Adventure | NES | G, L, T, GP | Complete | 2.0.4 | 12 Feb 2019 |
| Mirror Mode | SMKWorkshop | Super Mario Kart | Racing | SNES | G, L, GP, O | Complete | 1.0 | 14 Dec 2020 |
| Miracle Warriors Improvement | Penta Penguin | Miracle Warriors: Seal of the Dark Lord | Role Playing | SMS | GP | Improvement | 1.0 | 20 Aug 2014 |
| Minor Tweak Pack | Chronosplit | Final Fantasy Tactics Advance | Strategy > Turn Based | GBA | GP | Improvement | Final | 12 Dec 2017 |
| Minor Improvements For Final Fight 2 | SCD | Final Fight 2 | Action > Beat 'Em Up | SNES | G, T | Improvement | 1.0 | 14 Oct 2020 |
| Minor Fixes for TMNT III - The Manhattan Project | SCD | Teenage Mutant Ninja Turtles III: The Manhattan Project | Action > Beat 'Em Up | NES | G, GP | Improvement | Final | 30 May 2017 |
| Minor fixes for Mortal Kombat II | SCD | Mortal Kombat 2 | Action > Fighting | SNES | G, T, GP | Improvement | Final | 07 Jun 2017 |
| Minnie Mousecapade | Zynk Oxhyde | Mickey Mousecapade | Action > Platformer | NES | G, T | Improvement | 1.0 | 12 May 2018 |
