| Mr. Gimmick - JPN to PAL Title Screen | Polar-Star | Mr. Gimmick | Action > Platformer | NES | G | Improvement | 1.0 | 03 Oct 2018 |
| Mr. Do! + | UniversalDo | Mr. Do! | Action | ARC | G | Complete | 1.0 | 19 Apr 2010 |
| Mr. & Ms. Pac-Man | S. K. Dumbbus | Fantasy Zone: The Maze | Action | SMS | G, T, O | Complete | 1.1 | 31 Aug 2016 |
| Moveset Update | Camerupt | Pokémon: Gold Version | Role Playing | GB | GP | Improvement | 1.0 | 27 May 2016 |
| Mother: 25th Anniversary Edition | DragonDePlatino | Mother | Role Playing | NES | G, L, T, GP | Complete | 1.11 | 05 Nov 2014 |
| Mother 3: Claus's Journey | spiderfreak1011 | Mother 3 | Role Playing | GBA | G, L, T, GP | Complete | 1.04 | 29 Mar 2019 |
| Mother 3 Number Font Change | Yave | Mother 3 | Role Playing | GBA | G | Improvement | 1.0 | 11 Apr 2017 |
| Mother 25th Faithful Edition | ShadowOne333 | Mother | Role Playing | NES | G, T, O | Addendum | 1.3 | 02 Feb 2015 |
| Mother 2.5: The Giftman Chronicles | EB_Girl | EarthBound | Role Playing | SNES | G, L, T | Complete | 2.5 | 01 Jan 2003 |
| Mother 2.1: Slightly Less Terrible Edition | FractiousLemon | EarthBound | Role Playing | SNES | G, T, GP | Complete | 1.1 | 09 Aug 2018 |
| Mother 2 Deluxe | Messianic | EarthBound | Role Playing | SNES | G, S, L, T, GP, O | Improvement | 1.31 | 08 Dec 2015 |
| Mother 1+2: Autoboot Hacks | ShadowOne333 | Mother 1+2 | Role Playing | GBA | O | Addendum | 1.0 | 18 Dec 2015 |
| Mother 1 Color Restoration | Chaos Rush | Mother 1+2 | Role Playing | GBA | G | Improvement | 2.0 | 06 Jul 2019 |
| MOTHER - Vanilla Sprites | Red Mage Joe | Mother | Role Playing | NES | G | Addendum | 1.02 | 06 Mar 2019 |
| MOTHER - Re-Faithful | Red Mage Joe | Mother | Role Playing | NES | S, GP | Addendum | 1.0 | 15 Mar 2019 |
| Mortal Kombat Trilogy - quality hack | paul_met | Mortal Kombat Trilogy | Action > Fighting | SAT | G, O | Improvement | 1.1 | 09 Jun 2017 |
| Mortal Kombat Revelations | Smoke | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | G, S, L, T, GP | Complete | 1.00 | 10 Sep 2012 |
| Mortal Kombat Mythologies: Quan Chi | Mr2 | Perfect Weapon | Action > Beat 'Em Up | PSX | G, GP | Improvement | 0.1 | 08 Oct 2016 |
| Mortal Kombat Mythologies - Control modification | Mr2 | Mortal Kombat Mythologies: Sub-Zero | Action > Platformer | PSX | O | Improvement | 0.1 | 24 Aug 2016 |
| Mortal Kombat II: Unlimited (Spanish) | -pepodmc | Mortal Kombat 2 | Action > Fighting | GEN | T | Addendum | 1.0 | 07 Dec 2013 |
