 | Mahjong Kyou Jidai (Japan) | 1986 | Sanritsu | mjkjidai | Tabletop / Mahjong *Mature* | 0.00 |
| | Mahjong Senka (Japan) | 1986 | Visco | mjsenka | | 6.75 |
| | Mahjong Shiyou (Japan) | 1986 | Visco | mjsiyoub | | 0.00 |
 | Mahjong Sisters (Japan) | 1986 | Toaplan | mjsister | Tabletop / Mahjong *Mature* | 0.00 |
| | Mahjong Yarou [BET] (Japan) | 1986 | Visco / Video System | mjyarou | | 0.00 |
 | Manhattan 24 Bunsyo (Japan) (clone of: jailbrek) | 1986 | Konami | manhatan | Platform / Shooter Scrolling | 0.00 |
 | Mania Challenge (set 1) | 1986 | Technos Japan (Taito America license) | maniach | Wrestling | 5.78 |
| Mania Challenge (set 2) (clone of: maniach) | 1986 | Technos Japan (Taito America license) | maniach2 | Wrestling | 0.00 |
 | Max RPM (ver 2) | 1986 | Bally Midway | maxrpm | Driving / Race (chase view) | 6.60 |
 | Meijinsen | 1986 | SNK | meijinsn | Unplayable | 0.00 |
| | Mephisto (rev. 1.1) (clone of: mephistp) | 1986 | Stargame | mephistp1 | | 0.00 |
| | Mephisto (rev. 1.2) | 1986 | Stargame | mephistp | | 0.00 |
| | Merlins Money Maze | 1986 | Zilec-Zenitone | merlinmm | Maze | 5.00 |
 | Metroid (PlayChoice-10) | 1986 | Nintendo | pc_mtoid | Platform / Run Jump Scrolling | 4.59 |
 | Mexico 86 (bootleg of Kick and Run) (clone of: kicknrun) | 1986 | bootleg | mexico86 | Sports / Soccer | 0.00 |
| | Mexico 86 (German speech) | 1986 | Zaccaria | mexico | | 0.00 |
 | Mighty Guy | 1986 | Nichibutsu | mightguy | Fighter / Vertical | 5.04 |
 | Mission 660 (bootleg) (clone of: m660) | 1986 | bootleg | m660b | Shooter / Flying Vertical | 0.00 |
| Mission 660 (Japan) (clone of: m660) | 1986 | Wood Place Inc. (Taito Corporation license) | m660j | Shooter / Flying Vertical | 0.00 |
| Mission 660 (US) | 1986 | Wood Place Inc. (Taito America Corporation license) | m660 | Shooter / Flying Vertical | 7.00 |
