| Maestro: Green Groove | Neko | 8/10 | |
| Mahjong Quest Expeditions | Avanquest | 6/10 | |
| Mario & Luigi: Bowser’s Inside Story | Nintendo | 10/10 | |
| Mario & Luigi: Partners in Time | Nintendo | 7/10 | |
| Mario & Sonic at the Olympic Games | SEGA | 6/10 | |
| Mario & Sonic at the Winter Olympic Games | SEGA | 6/10 | |
| Mario Hoops 3 on 3 | Nintendo | 7/10 | |
| Mario Kart DS | Nintendo | 9/10 | |
| Mario Slam Basketball | Nintendo | 7/10 | |
| Mario vs. Donkey Kong 2: March of the Minis | Nintendo | 8/10 | |
| Mario vs. Donkey Kong: Mini-Land Mayhem! | Nintendo | 9/10 | |
| May's Mysteries: The Secret of Dragonville | Mastertronic | 8/10 | |
| Merlin: A Servant of Two Masters | Avanquest | 5/10 | |
| Metal Slug 7 | SNK Playmore | 7/10 | |
| Meteos | Bandai | 9/10 | |
| Metroid Prime Hunters | Nintendo | 8/10 | |
| Metroid Prime Hunters | Nintendo | 8/10 | |
| Metroid Prime Hunters: First Hunt Demo | Nintendo | 8/10 | |
| Metroid Prime Pinball | Nintendo | 8/10 | |
| Michael Jackson: The Experience (DS) | Ubisoft | 7/10 | |
| Midnight Mysteries: The Edgar Allan Poe Conspiracy | MumboJumbo | 7/10 | |
| Might & Magic: Clash of Heroes | Ubisoft | 9/10 | |
| Mighty Milky Way | WayForward | 9/10 | |
| Mind Quiz: Your Brain Coach | Ubisoft | 4/10 | |
| Miss Spider Harvest Time Hop and Fly | The Game Factory | 7/10 | |
| Monster Truck DS | THQ | 1/10 | |
| Moon | Gamebridge | 8/10 | |
| More Brain Training from Dr. Kawashima: How Old is Your Brain? | Nintendo | 9/10 | |
| Moto Racer DS | Nobilis | 7/10 | |
| Murder in Venice | City | 8/10 | |
| My Japanese Coach | Ubisoft | 7/10 | |
| MySims | EA | 5/10 | |
| Myst | Midway | 6/10 | |
| Mystery Case Files: MillionHeir | Nintendo | 7/10 | |
| Mystery Detective / Touch Detective | Atlus | 8/10 | |
| Mystery Detective 2 | Atlus | 8/10 | |
| Mystery Dungeon: Shiren the Wanderer | SEGA | 8/10 | |
| Mystery Stories | Avanquest | 5/10 | |
| Mystery Stories: Curse of the Ancient Spirits | Avanquest | 4/10 | |