| Mahou Sensei Negima! 1 Tokime - Magister Negi Magi (J)(Caravan) | |
| Mahou Sensei Negima! Private Lesson 2 (J)(Independent) | |
| Mail de Cute (J)(Independent) | |
| Major League Baseball 2K7 (U)(OMGba) | |
| Manga-ka Debut Monogatari (J)(2CH) | |
| Maniac Racers Advance (E)(Patience) | |
| Manic Miner (E)(Eurasia) | |
| Marble Madness & Klax (U)(Trashman) | |
| March of the Penguins (E)(Independent) | |
| March of the Penguins (U)(Sir VG) | |
| Marheaven - Knockin' on Heaven's Door (J)(Supplex) | |
| Marie, Elie & Anis No Atelier - Soyokaze Kara No Dengon (J)(Polla) | |
| Mario in Sonic Battle | |
| Mario Kart Fixed Circuit | |
| Mario Kart R Advance | |
| Mario Kart Super Circuit XXL | |
| Mario Kart XXL (Tech Demo) (Apr 17th 2004) | |
| Marvel - Ultimate Alliance (U)(Rising Sun) | |
| Marvel Ultimate Alliance (E)(Independent) | |
| Mary-Kate and Ashley - Girls Night Out (U)(Venom) | |
| Mary-Kate and Ashley - Sweet 16 (U)(Patience) | |
| Masters of the Universe - He-Man - Power of Grayskull (U)(Venom) | |
| Mat Hoffman's Pro BMX (E)(Rocket) | |
| Mat Hoffman's Pro BMX (U)(Lightforce) | |
| Mat Hoffman's Pro BMX 2 (U)(Eurasia) | |
| Matantei Loki Ragnarok (J)(Rising Sun) | |
| Matchbox - Cross Town Heroes (E)(Patientz) | |
| Matchbox - Cross Town Heroes (U)(Venom) | |
| Math Patrol - The Kleptoid Threat (U)(Sir VG) | |
| Mawaru Made in Wario (J)(WRG) | |
| Max Payne (U)(Mode7) | |
| Max Payne Advance (E)(Rising Sun) | |
| Maya the Bee - The Great Adventure (E)(Venom) | |
| Maya The Bee (E)(Endless Piracy) | |
| Mazes of Fate (U)(Rising Sun) | |
| Mech Platoon (E)(Eurasia) | |
| Mech Platoon (U)(Dumper) | |
| Medabots - Metabee Version (E)(GBATemp) | |
| Medabots - Metabee Version (U)(Oldskool) | |
| Medabots - Rokusho Version (E)(GBATemp) | |
| Medabots - Rokusho Version (U)(Independent) | |
| Medabots AX - Metabee Version (E)(Rising Sun) | |
| Medabots AX - Metabee Version (U)(Venom) | |
| Medabots AX - Rokusho Version (E)(Patience) | |
| Medabots AX - Rokusho Version (U)(Venom) | |
| Medal of Honor - Infiltrator (J)(Rising Sun) | |
| Medal of Honor - Infiltrator (U)(Venom) | |
| Medal of Honor - Underground (E)(Patience) | |
| Medal of Honor - Underground (E)(Sir VG) | |
| Medal of Honor - Underground (U)(Mode7) | |