| Megaman Wily Wars SRAM Save Hack | MottZilla | Mega Man: The Wily Wars | Action > Platformer | GEN | O | Improvement | 1.0 | 30 Jan 2009 |
| Mega Man the Wily Wars SRAM+ | Ar8temis008 | Mega Man: The Wily Wars | Action > Platformer | GEN | GP | Improvement | 0.5 | 27 Jan 2018 |
| Refill Weapon after Death | ElwinBran | Mega Man: The Wily Wars | Action > Platformer | GEN | GP | Addendum | 1.0 | 25 Oct 2019 |
| Mega SWIV color improvement | fusaru | Mega SWIV | Action > Shooter | GEN | G | Improvement | 1.05 | 29 Feb 2016 |
| Last Bible II debug menu patch | Revenant | Megami Tensei Gaiden: Last Bible II | Role Playing | GB | O | Improvement | 1.0 | 02 Feb 2019 |
| Mendel Palace Vapor | Player 1 | Mendel Palace | Action | NES | G, L, T, O | Complete | 1.0 | 27 Aug 2018 |
| Mega Force | lancuster | Metal Force | Action > Platformer | NES | G, T, O | Improvement | 1.0 | 19 Oct 2016 |
| Metal Gear - UNROM to MMC3 Mapper | infidelity | Metal Gear | Action | NES | O | Improvement | 1.0 | 17 Sep 2013 |
| Metal Gear - Personal Area Network | Turambar | Metal Gear | Action | NES | GP | Improvement | 1.0 | 09 Jun 2015 |
| Metal Gear DX | LastduaL | Metal Gear | Action | NES | G | Improvement | 1.0 | 07 Mar 2017 |
| Metal Gear - text speed | rainponcho | Metal Gear | Action | NES | O | Improvement | 0.1 | 21 May 2017 |
| TX-55 in Metal Gear | Arty | Metal Gear | Action | NES | G, T, O | Improvement | 1.0 | 02 Jan 2013 |
| Metal Gear MSX + Style | Mister Xiado | Metal Gear | Action | NES | G, T | Improvement | 1.0 | 08 Aug 2018 |
| Metal Gear 1 - Improvements | FRS | Metal Gear (MSX2) | Action | MSX | O | Improvement | 1.0 | 07 Mar 2011 |
| Metal Gear 2 - Turbo Fix | FRS | Metal Gear 2: Solid Snake (MSX2) | Action Adventure | MSX | O | Improvement | 1.1 | 15 Jul 2011 |
| Metal Slader Glory: DX - Debug Mode Enabled | FCandChill | Metal Slader Glory: Director's Cut | Adventure | SNES | O | Improvement | 1.0 | 09 Feb 2019 |
| Metal Slug 2 NoBGM | Koston | Metal Slug 2 | Action > Shooter | ARC | S | Improvement | 1.0 | 18 Sep 2017 |
| Metal Slug 2 CD Turbo - Slowdown Reduction Patch | SmokeMonster, system11 | Metal Slug 2 | Action > Shooter | NGCD | GP | Bug Fix | 1.0 | 13 Dec 2015 |
| Metroid Remix | Litmus Dragon | Metroid | Action Adventure | NES | G, L | Complete | 1.3 | 12 Jan 2000 |
| Metroid 2000 | ColinB | Metroid | Action Adventure | NES | L | Complete | 1.0 | 28 Mar 2003 |
