| Marvel Super Hero Squad (Europe) (Es,It) | |
| Marvel Super Hero Squad (Korea) (En,Ko) | |
| Marvel Super Hero Squad (USA) (En,Fr,Es) | |
| Marvel Trading Card Game (Europe) (En,Fr,De,Es,It) | |
| Marvel Trading Card Game (USA) | |
| Mary King's Riding School (Europe) (En,Fr,De,Es,It) | |
| Master All Classics (Europe) (En,Fr,De,Es,It) | |
| Master Jin Jin's IQ Challenge (USA) | |
| Master of Illusion (USA) | |
| Master of the Monster Lair (USA) | |
| Match 3 Madness (Europe) (En,Fr,De,Es,It,Nl) | |
| Matching Maker DS (Japan) | |
| Matchstick (USA) (En,Es) | |
| Matchstick Puzzle by DS (Europe) (En,Fr,De,Es,It) | |
| Math Blaster in the Prime Adventure (USA) | |
| Math Play (USA) | |
| Math Play (USA) (Rev 1) | |
| Mathe Buddy - 5. Klasse (Europe) (Fr,De,It) | |
| Mathe Buddy - 6. Klasse (Europe) (Fr,De,It) | |
| Mathematik 1.-4. Klasse - Fit fuers Gymnasium (Germany) | |
| Maths Made Simple (Europe) (En,Fr,De,Es,It) | |
| Maths Play - Have Fun with Numbers! (Europe) (En,Fr,De,Es,It,Nl,Sv,No,Da) | |
| Matsuda Tadanori Onsen Kyouju Kanshuu - Zenkoku Dokodemo Onsen Techou (Japan) | |
| Mawashite Koron (Japan) | |
| Mawashite Tsunageru Touch Panic (Japan) | |
| Mawasundaa!! (Japan) | |
| Mazes of Fate DS (Europe) (En,Fr,De,Es,It) | |
| Mazes of Fate DS (USA) | |
| McDonald's eCDP: eCrew Development Program | |
| Me de Unou o Kitaeru - DS Sokudoku Junior (Japan) | |
| Me de Unou o Kitaeru - DS Sokudoku Jutsu (Japan) | |
| Mechanic Master (Europe) (En,Fr,De,Es,It) | |
| Mechanic Master (USA) (En,Fr,De,Es,It) | |
| Mechanic Master 2 (USA) | |
| MechAssault - Phantom War (Europe) (En,Fr,De) | |
| MechAssault - Phantom War (USA) | |
| Medarot DS - Kabuto Ver. (Japan) | |
| Medarot DS - Kuwagata Ver. (Japan) | |
| Meet the Robinsons (Europe) (En,Fr,De,Es,It,Nl) | |
| Meet the Robinsons (USA) | |
| Mega Brain Boost (USA) | |
| Mega Man Battle Network 5 - Double Team DS (Europe) (En,Fr,De,Es,It) | |
| Mega Man Battle Network 5 - Double Team DS (USA) | |
| Mega Man Star Force - Dragon (Europe) (En,Fr,De,Es,It) | |
| Mega Man Star Force - Dragon (USA) | |
| Mega Man Star Force - Leo (Europe) (En,Fr,De,Es,It) | |
| Mega Man Star Force - Leo (USA) | |
| Mega Man Star Force - Pegasus (Europe) (En,Fr,De,Es,It) | |
| Mega Man Star Force - Pegasus (USA) | |
| Mega Man Star Force 2 - Zerker x Ninja (Europe) (En,Fr,De,Es,It) | |