| | Alpine Racer 2 (Rev. ARS2 Ver.A) (clone of: alpinr2b) | 1996 | Namco | alpinr2a | | 0.00 |
| | Alpine Racer 2 (Rev. ARS2 Ver.B) | 1996 | Namco | alpinr2b | | 0.00 |
 | Alpine Ski (set 1) | 1982 | Taito Corporation | alpine | Sports / Skiing | 6.40 |
| Alpine Ski (set 2) (clone of: alpine) | 1982 | Taito Corporation | alpinea | Sports / Skiing | 0.00 |
| | Alpine Surfer (Rev. AF2 Ver.A) | 1996 | Namco | alpinesa | | 0.00 |
| | Altair | 1981 | Cidelsa | altair | | 6.50 |
 | Altered Beast (Mega-Tech) | 1988 | Sega | mt_beast | Platform / Fighter Scrolling | 5.80 |
 | Altered Beast (set 2, MC-8123B 317-0066) (clone of: altbeast) | 1988 | Sega | altbeast2 | | 0.00 |
| Altered Beast (set 4, MC-8123B 317-0066) (clone of: altbeast) | 1988 | Sega | altbeast4 | | 0.00 |
| Altered Beast (set 5, FD1094 317-0069) (clone of: altbeast) | 1988 | Sega | altbeast5 | | 0.00 |
| Altered Beast (set 6, 8751 317-0076) (clone of: altbeast) | 1988 | Sega | altbeast6 | | 0.00 |
| Altered Beast (set 8, 8751 317-0078) | 1988 | Sega | altbeast | Platform / Fighter Scrolling | 7.91 |
| | Always Eight (Bwb) (MPS) | 1969 | Bwb | j2always | | 0.00 |
| | Always Nine (Pcp) (set 1) (PROCONN) | 1969 | PCP | pr_alwy9 | | 0.00 |
| | Always Nine (Pcp) (set 2) (PROCONN) (clone of: pr_alwy9) | 1969 | PCP | pr_alwy9a | | 0.00 |
 | Amazing Maze | 1976 | Midway | maze | Maze | 5.19 |
| | Amazon Hunt | 1983 | Gottlieb | amazonh | | 0.00 |
| | Ambassador (Barcrest) (DAM, Dutch) (MPU4) | 1969 | Barcrest | m4ambass | | 0.00 |
 | Ambush | 1983 | Tecfri | ambush | Shooter / Flying (chase view) | 6.60 |
| Ambush (Japan) (clone of: ambush) | 1983 | Tecfri (Nippon Amuse license) | ambushj | | 0.00 |
