| | Multipede (Centipede/Millipede multigame kit) | 2002 | hack (Braze Technologies) | multiped | | 0.00 |
| | Multipede (rev 1.62) | 2002 | Cosmodog / Team Play (Licensed from Infogrames via Midway Games West) | cmmb162 | | 0.00 |
| | Multiplay Club (Barcrest) (MPU4, MP 2.8) | 1969 | Barcrest | m4multcl | | 0.00 |
| | Multiway (Barcrest) (Dutch) (MPU4) | 1969 | Barcrest | m4multwy | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 1) | 1969 | Impulse | ep_mummy | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 2) (clone of: ep_mummy) | 1969 | Impulse | ep_mummya | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 3) (clone of: ep_mummy) | 1969 | Impulse | ep_mummyb | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 4) (clone of: ep_mummy) | 1969 | Impulse | ep_mummyc | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 5) (clone of: ep_mummy) | 1969 | Impulse | ep_mummyd | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 6) (clone of: ep_mummy) | 1969 | Impulse | ep_mummye | | 0.00 |
| | Mummy Talks (Impulse) (EPOCH) (set 7) (clone of: ep_mummy) | 1969 | Impulse | ep_mummyf | | 0.00 |
 | Munch Mobile (US) (clone of: joyfulr) | 1983 | SNK (Centuri license) | mnchmobl | Driving | 0.00 |
| | Mundial 90 | 1990 | Inder | mundial | | 0.00 |
| | Muroge Monaco (bootleg?) (clone of: murogem) | 1982 | bootleg? | murogmbl | | 0.00 |
| | Muroge Monaco (set 1) | 1969 | | murogem | | 0.00 |
| | Muroge Monaco (set 2) (clone of: murogem) | 1969 | | murogema | | 0.00 |
| | Muroge Monaco (set 3) (clone of: murogem) | 1969 | | murogemb | | 0.00 |
| | Musapey's Choco Marker (Rev A) (GDL-0014A) | 2002 | Ecole Software | chocomk | | 0.00 |
| | Muscle Bomber Duo: Heat Up Warriors (Japan 931206) (clone of: mbombrd) | 1993 | Capcom | mbombrdj | Wrestling | 0.00 |
| | Muscle Bomber Duo: Ultimate Team Battle (World 931206) | 1993 | Capcom | mbombrd | Wrestling | 8.75 |
