![(Medal) Yumefuda [BET]](/snap.small/yumefuda.jpeg) | (Medal) Yumefuda [BET] | 1991 | Alba | yumefuda | Unplayable | 0.00 |
 | 1991 Spikes (Italian bootleg) (clone of: pspikes) | 1991 | bootleg | spikes91 | | 0.00 |
 | 2020 Super Baseball (set 1) | 1991 | SNK / Pallas | 2020bb | Sports / Baseball | 8.94 |
| 2020 Super Baseball (set 2) (clone of: 2020bb) | 1991 | SNK / Pallas | 2020bba | Sports / Baseball | 0.00 |
| 2020 Super Baseball (set 3) (clone of: 2020bb) | 1991 | SNK / Pallas | 2020bbh | Sports / Baseball | 0.00 |
 | 64th. Street - A Detective Story (Japan) (clone of: 64street) | 1991 | Jaleco | 64streetj | | 0.00 |
| 64th. Street - A Detective Story (World) | 1991 | Jaleco | 64street | Fighter / 2.5D | 7.15 |
 | Acrobat Mission | 1991 | UPL (Taito license) | acrobatm | Shooter / Flying Vertical | 10.00 |
 | Agress | 1991 | Palco | agress | Puzzle / Sliding | 0.00 |
 | Alpha Mission II / ASO II - Last Guardian | 1991 | SNK | alpham2 | Shooter / Flying Vertical | 5.56 |
 | Arabian Fight (Japan) (clone of: arabfgt) | 1991 | Sega | arabfgtj | Fighter / Field | 0.00 |
| Arabian Fight (US) (clone of: arabfgt) | 1991 | Sega | arabfgtu | | 0.00 |
| Arabian Fight (World) | 1991 | Sega | arabfgt | Fighter / Field | 6.67 |
 | Arlington Horse Racing (v1.21-D) | 1991 | Strata/Incredible Technologies | arlingtn | Sports / Horse Racing | 6.67 |
 | Asylum (prototype) | 1991 | Leland Corp. | asylum | Shooter / Walking | 0.00 |
 | Atomic Punk (US) (clone of: dynablst) | 1991 | Irem America (licensed from Hudson Soft) | atompunk | Maze | 0.00 |
 | AV2Mahjong No.1 Bay Bridge no Seijo (Japan) | 1991 | Miki Syouji / AV Japan | av2mj1bb | Tabletop / Mahjong *Mature* | 6.24 |
 | AV2Mahjong No.2 Rouge no Kaori (Japan) | 1991 | Miki Syouji / AV Japan | av2mj2rg | Tabletop / Mahjong *Mature* | 10.00 |
 | Avenging Spirit | 1991 | Jaleco | avspirit | Platform / Fighter Scrolling | 8.43 |
 | Bakatonosama Mahjong Manyuuki | 1991 | Monolith Corp. | bakatono | Tabletop / Mahjong *Mature* | 0.00 |
