| Alien Syndrome | No Alternate Title | Sega | 19 March 1992 | Action > Shooter | GG | N | N | Y | N |
| Alien vs. Predator | No Alternate Title | Activision | 08 January 1993 | Action > Beat 'Em Up | SNES | N | N | Y | N |
| Alien Vs. Predator: The Last of His Clan | Alien Vs. Predator | Activision | 24 September 1993 | Action | GB | N | N | Y | N |
| Aliens: Alien 2 | No Alternate Title | SquareSoft | Unreleased | Action > Platformer | FDS | N | N | N | Y |
| Alisia Dragoon | No Alternate Title | Sega | 23 April 1992 | Action > Platformer | GEN | N | N | Y | N |
| All Night Nippon Super Mario Bros. | No Alternate Title | Fuji Television | 1986 | Action > Platformer | FDS | N | N | Y | Y |
| Alleyway | No Alternate Title | Nintendo | 21 April 1989 | Puzzle | GB | N | N | Y | Y |
| Almana no Kiseki | The Miracle of Almana | Konami | 11 August 1987 | Action | FDS | N | N | Y | N |
| Alone In The Dark: The New Nightmare | No Alternate Title | Infogrames | 22 June 2001 | Action Adventure | DC | N | N | Y | N |
| Alpha Mission | ASO: Armored Scrum Object | SNK | 03 September 1986 | Action > Shooter | NES | N | N | Y | N |
| Altered Beast | Juuouki | Sega | 27 November 1988 | Action > Beat 'Em Up | GEN | N | N | Y | Y |
| Altered Beast | No Alternate Title | Sega | 1989 | Action > Beat 'Em Up | SMS | N | N | Y | N |
| Altered Space: A 3-D Alien Adventure | No Alternate Title | Sony Imagesoft | September 1991 | Puzzle | GB | N | N | Y | Y |
| Alundra | The Adventures of Alundra | Working Designs | 11 April 1997 | Action Adventure | PSX | N | N | N | N |
| Amagon | Totsuzen! Machoman;Suddenly! Machoman | American Sammy | 02 December 1988 | Action > Platformer | NES | N | N | Y | N |
| America Daitouryou Senkyo | United States Presidential Race | Hect | 28 October 1988 | Simulation | NES | N | N | N | N |
| America Daitouryou Senkyo | United States Presidential Race | Hect | 28 October 1988 | Simulation | NES | N | N | Y | N |
| American Dream | No Alternate Title | Coconuts Japan | 23 September 1989 | Other | NES | N | N | Y | N |
| American Gladiators | No Alternate Title | GameTek | April 1993 | Sports | SNES | Y | N | N | N |
| American Gladiators | No Alternate Title | GameTek | October 1991 | Sports | NES | N | N | N | Y |
