| Id | Name | Systems | Actions |
|---|---|---|---|
| 3467 | Motor Toon Grand Prix | PSX | |
| 2268 | Mouse Trap Hotel | GB | |
| 1228 | Mr. Chin's Gourmet Paradise | GB | |
| 807 | Mr. Driller 2 | GBA | |
| 440 | Mr. Nutz | SNES | |
| 1612 | Mr. Nutz | Genesis | |
| 3185 | Mr. Tuff | SNES | |
| 1123 | Ms. Pac-Man | GBA | |
| 2498 | Ms. Pac-Man | SNES | |
| 3854 | Ms. Pac-Man | Genesis | |
| 2236 | Multidude | NES | |
| 989 | Muramasa: The Demon Blade | Wii | |
| 2782 | MURDER | Flash | |
| 3816 | MUSHA | Genesis | |
| 3218 | Musya | SNES | |
| 1081 | Mutant League Hockey | Genesis | |
| 3576 | My Dinner With André | GB | |
| 3427 | My Friend Pedro | Flash | |
| 3431 | My Hero | SMS | |
| 2534 | My Little Pony Crystal Princess: The Runaway Rainbow | GBA | |
| 2614 | My Little Pony: Pinkie Pie's Party | DS | |
| 3555 | My QLDC Level (QLDC 2023) | SNES | |
| 2426 | Myst | PSX | |
| 2454 | Myst | Saturn | |
| 3614 | Myst | JaguarCD |