| | Mighty! Pang (USA 001010) (clone of: mpang) | 2000 | Mitchell (Capcom license) | mpangu | | 0.00 |
| | Millennium Nuovo 4000 (Version 1.5) (clone of: mil4000) | 2000 | Sure Milano | mil4000b | | 0.00 |
| | Millennium Nuovo 4000 (Version 1.6) (clone of: mil4000) | 2000 | Sure Milano | mil4000c | | 0.00 |
| | Millennium Nuovo 4000 (Version 1.8) (clone of: mil4000) | 2000 | Sure Milano | mil4000a | | 0.00 |
| | Millennium Nuovo 4000 (Version 2.0) | 2000 | Sure Milano | mil4000 | | 0.00 |
 | Mission Craft (version 2.4) | 2000 | Sun | misncrft | Shooter / Flying Vertical | 7.33 |
| | Moero Justice Gakuen (JPN) / Project Justice (USA, EXP, KOR, AUS) (Rev A) | 2000 | Capcom | pjustic | | 4.55 |
| | Mr. Dig | 2000 | Sun | mrdig | | 7.67 |
 | Mr. Driller 2 (Japan, DR21 Ver.A) | 2000 | Namco | mrdrilr2 | Puzzle | 0.00 |
| Mr. Driller 2 (Japan, DR22 Ver.A) (clone of: mrdrilr2) | 2000 | Namco | mrdrlr2a | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.00) (clone of: 20pacgal) | 2000 | Namco / Cosmodog | 20pacgalr0 | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.01) (clone of: 20pacgal) | 2000 | Namco / Cosmodog | 20pacgalr1 | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.02) (clone of: 20pacgal) | 2000 | Namco / Cosmodog | 20pacgalr2 | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.03) (clone of: 20pacgal) | 2000 | Namco / Cosmodog | 20pacgalr3 | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.04) (clone of: 20pacgal) | 2000 | Namco / Cosmodog | 20pacgalr4 | | 0.00 |
| | Ms. Pac-Man/Galaga - 20th Anniversary Class of 1981 Reunion (V1.08) | 2000 | Namco / Cosmodog | 20pacgal | | 4.38 |
| | Multi Champ Deluxe (ver. 0106, 06/01/2000) | 2000 | ESD | mchampdx | | 0.00 |
| | Multi Game I (V.Ger 2.4) | 2000 | Amatic Trading GmbH | am_mg24 | | 2.00 |
| | Multi Game III (S.Ita 3.1) (clone of: am_mg35i) | 2000 | Amatic Trading GmbH | am_mg31i | | 0.00 |
| | Multi Game III (S.Ita 3.3) (clone of: am_mg35i) | 2000 | Amatic Trading GmbH | am_mg33i | | 0.00 |
