 | JoJo no Kimyou na Bouken: Mirai e no Isan (Japan 990927) | 1999 | Capcom | jojoba | Unplayable | 8.69 |
 | JoJo's Venture (USA 990128) | 1998 | Capcom | jojo | Unplayable | 8.67 |
 | Kisekae Hanafuda | 1995 | I'Max | kisekaeh | Unplayable | 0.00 |
 | Kisekae Mahjong | 1995 | I'Max | kisekaem | Unplayable | 1.00 |
 | Landing Gear (Ver 4.2 O) | 1995 | Taito | landgear | Unplayable | 7.75 |
| | Laser Base (set 1) | 1981 | Hoei (Amstar license) | laserbas | Unplayable | 5.50 |
| | Last Bronx (Export, Revision A) | 1996 | Sega | lastbrnx | Unplayable | 6.75 |
 | Lethal Enforcers (ver UAE, 11/19/92 15:04) | 1992 | Konami | lethalen | Unplayable | 6.83 |
 | Long Hu Bang (China, V035C) | 1995 | IGS | lhb | Unplayable | 6.50 |
 | Lord of Gun (USA) | 1994 | IGS | lordgun | Unplayable | 6.83 |
 | Magical Drop (Japan, Version 1.1, 1995.06.21) (clone of: chainrec) | 1995 | Data East | magdrop | Unplayable | 0.00 |
| Magical Drop Plus 1 (Japan, Version 2.1, 1995.09.12) (clone of: chainrec) | 1995 | Data East | magdropp | Unplayable | 0.00 |
| | Magical Tetris Challenge (981009 Japan) | 1998 | Capcom | mtetrisc | Unplayable | 8.44 |
 | Mahjong Block Jongbou (Japan) | 1987 | SNK | jongbou | Unplayable | 0.00 |
 | Mahjong Daireikai (Japan) | 1989 | Jaleco / NMK | daireika | Unplayable | 0.00 |
![Mahjong If...? [BET]](../snapsmall/MS_4814.html) | Mahjong If...? [BET] | 1990 | Dynax | mjifb | Unplayable | 0.00 |
 | Malzak | 1969 | Kitronix | malzak | Unplayable | 10.00 |
| | Manx TT Superbike - Twin (Revision C) | 1995 | Sega | manxtt | Unplayable | 7.00 |
 | Maru-Chan de Goo! (J 971216 V1.000) | 1997 | Sega / Toyosuisan | maruchan | Unplayable | 6.50 |
 | Mayjinsen | 1994 | Seta | mayjinsn | Unplayable | 0.00 |
