 | 2020 Super Baseball (set 1) | 1991 | SNK / Pallas | 2020bb | Sports / Baseball | 7.75 |
| 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 | 64streej | Fighter / 2.5D | 0.00 |
| 64th. Street - A Detective Story (World) | 1991 | Jaleco | 64street | Fighter / 2.5D | 9.14 |
 | Acrobat Mission | 1991 | UPL (Taito license) | acrobatm | Shooter / Flying Vertical | 0.00 |
 | Agress | 1991 | Palco | agress | Puzzle / Sliding | 0.00 |
 | Alpha Mission II / ASO II - Last Guardian | 1991 | SNK | alpham2 | Shooter / Flying Vertical | 9.50 |
 | Arlington Horse Racing (v1.21-D) | 1991 | Strata/Incredible Technologies | arlingtn | Sports / Horse Racing | 10.00 |
 | 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* | 6.71 |
 | AV2Mahjong No.2 Rouge no Kaori (Japan) | 1991 | MIKI SYOUJI/AV JAPAN | av2mj2rg | Tabletop / Mahjong *Mature* | 0.00 |
 | Avenging Spirit | 1991 | Jaleco | avspirit | Platform / Fighter Scrolling | 9.00 |
 | Bakatonosama Mahjong Manyuki | 1991 | Monolith Corp. | bakatono | Tabletop / Mahjong *Mature* | 0.00 |
 | Batman | 1991 | Atari Games | batman | Platform / Fighter Scrolling | 0.00 |
 | Battlecry | 1991 | Home Data | battlcry | Fighter / 2D | 0.00 |
 | Bells & Whistles (Version L) | 1991 | Konami | blswhstl | Shooter / Flying Vertical | 7.19 |
 | Big Karnak | 1991 | Gaelco | bigkarnk | Platform / Fighter Scrolling | 4.00 |
 | Black Heart | 1991 | UPL | blkheart | Shooter / Flying Horizontal | 10.00 |
