 | Asylum (prototype) | 1991 | Leland Corp. | asylum | Shooter / Walking | 0.00 |
| | Atleta | 1991 | Inder | atleta | | 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* | 6.00 |
 | 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 | 6.94 |
 | Bakatonosama Mahjong Manyuuki (MOM-002)(MOH-002) | 1991 | Monolith Corp. | bakatono | Tabletop / Mahjong *Mature* | 1.00 |
 | Batman | 1991 | Atari Games | batman | Platform / Fighter Scrolling | 7.38 |
| | Batman (1.01) (clone of: btmn_103) | 1991 | Data East | btmn_101 | | 0.00 |
| | Batman (1.03 Germany) (clone of: btmn_103) | 1991 | Data East | btmn_g13 | | 0.00 |
| | Batman (1.03) | 1991 | Data East | btmn_103 | | 0.00 |
| | Batman (1.06) (clone of: btmn_103) | 1991 | Data East | btmn_106 | | 0.00 |
 | Battlecry | 1991 | Home Data | battlcry | Fighter / 2D | 5.14 |
| | Beauty Block | 1991 | AMT | beautyb | | 0.00 |
| | Beeline (39-360-075) | 1991 | BFM | beeline | | 0.00 |
 | Bells & Whistles (Version L) | 1991 | Konami | blswhstl | Shooter / Flying Vertical | 7.25 |
 | Big Karnak | 1991 | Gaelco | bigkarnk | Platform / Fighter Scrolling | 6.14 |
 | Black Heart | 1991 | UPL | blkheart | Shooter / Flying Horizontal | 7.50 |
| Black Heart (Japan) (clone of: blkheart) | 1991 | UPL | blkheartj | | 0.00 |
 | Blade Master (World) | 1991 | Irem | bmaster | Fighter / 2.5D | 7.67 |
