 | Aero Fighters (Turbo Force hardware set 2) (clone of: aerofgt) | 1992 | Video System Co. | aerofgtc | Shooter / Flying Vertical | 0.00 |
 | Aero Fighters 2 / Sonic Wings 2 | 1994 | Video System Co. | sonicwi2 | Shooter / Flying Vertical | 9.28 |
 | Aero Fighters 3 / Sonic Wings 3 | 1995 | Video System Co. | sonicwi3 | Shooter / Flying Vertical | 9.26 |
 | Air Duel (Japan) | 1990 | Irem | airduel | Shooter / Flying Vertical | 6.74 |
 | Air Gallet (Europe) | 1996 | Banpresto / Gazelle | agallet | Shooter / Flying Vertical | 8.70 |
 | Air Raid (encrypted) (clone of: cshooter) | 1987 | Seibu Kaihatsu | airraid | Shooter / Flying Vertical | 0.00 |
 | Ajax | 1987 | Konami | ajax | Shooter / Flying Vertical | 7.38 |
| Ajax (Japan) (clone of: ajax) | 1987 | Konami | ajaxj | Shooter / Flying Vertical | 0.00 |
| | Alcon (US) | 1986 | Toaplan / Taito America Corp. | alcon | Shooter / Flying Vertical | 7.87 |
 | Alpha Mission (clone of: aso) | 1985 | SNK | alphamis | Shooter / Flying Vertical | 0.00 |
 | Alpha Mission II / ASO II - Last Guardian (NGM-007)(NGH-007) | 1991 | SNK | alpham2 | Shooter / Flying Vertical | 9.25 |
 | Arbalester | 1989 | Seta | arbalest | Shooter / Flying Vertical | 6.50 |
 | Argus | 1986 | NMK (Jaleco license) | argus | Shooter / Flying Vertical | 7.00 |
 | Armed Formation | 1988 | Nichibutsu | armedf | Shooter / Flying Vertical | 6.00 |
 | Armed Police Batrider (Europe) (Fri Feb 13 1998) | 1998 | Raizing / Eighting | batrider | Shooter / Flying Vertical | 9.01 |
 | Ashura Blaster (US) (clone of: ashura) | 1990 | Taito America Corporation | ashurau | Shooter / Flying Vertical | 0.00 |
| Ashura Blaster (World) | 1990 | Taito Corporation Japan | ashura | Shooter / Flying Vertical | 7.33 |
| ASO - Armored Scrum Object | 1985 | SNK | aso | Shooter / Flying Vertical | 9.25 |
 | Astro Warrior (Mega-Tech, SMS based) | 1986 | Sega | mt_astro | Shooter / Flying Vertical | 0.00 |
 | Asuka & Asuka (World) | 1988 | Taito Corporation | asuka | Shooter / Flying Vertical | 7.29 |
