| Advanced Military Commander | Advanced Daisenryaku | Sega | 21 June 1991 | Strategy | GEN | N | N | Y | N |
| Advanced Military Commander V | Advanced Daisenryaku V | Sega | 29 June 2006 | Strategy | PC | N | N | Y | N |
| Adventure | No Alternate Title | Atari | 1979 | Adventure | 2600 | Y | Y | N | N |
| Adventure Island | Takahashi Meijin no Bouken Jima II | Hudson | February 1992 | Action > Platformer | GB | N | N | Y | N |
| Adventure Island | Takahashi Meijin no Bouken Jima | Hudson | 12 September 1986 | Action > Platformer | NES | Y | Y | Y | Y |
| Adventure Island II | Takahashi Meijin no Bouken Jima II; The Adventure Island, Part Two | Hudson | February 1991 | Action > Platformer | NES | N | N | Y | Y |
| Adventure Island II: Aliens in Paradise | Takahashi Meijin no Boukenjima III | Hudson | 26 February 1993 | Action > Platformer | GB | N | N | Y | Y |
| Adventure Island III | Takahashi Meijin no Bouken Jima III | Hudson | 31 July 1992 | Action > Platformer | NES | N | Y | Y | Y |
| Adventures of Dino Riki | Shinjinrui: The New Type | Hudson | 10 February 1987 | Action > Shooter | NES | N | N | Y | N |
| Adventures of Lolo | No Alternate Title | HAL Laboratory | April 1989 | Puzzle | NES | N | Y | Y | Y |
| Adventures of Lolo 2 | Adventures of Lolo | HAL Laboratory | 06 January 1990 | Puzzle | NES | N | Y | Y | Y |
| Adventures of Lolo 3 | Adventures of Lolo II | HAL Laboratory | 26 December 1990 | Puzzle | NES | N | Y | Y | Y |
| Adventures of Tom Sawyer | Tom Sawyer no Bouken | Seta | 06 February 1989 | Action > Platformer | NES | N | N | Y | N |
| Aerial Assault | No Alternate Title | Sega | 1990 | Action > Shooter | SMS | N | N | Y | N |
| Aerial Assault | No Alternate Title | Sega | 05 June 1992 | Action > Shooter | GG | N | N | Y | N |
| Aero Blasters | No Alternate Title | Hudson | 02 November 1990 | Action > Shooter | TG16 | N | N | Y | N |
| Aero Fighters | Sonic WIngs | Mc O'River | 1994 | Action > Shooter | SNES | N | N | Y | N |
| Aero the Acro-Bat | No Alternate Title | SunSoft | October 1993 | Action > Platformer | SNES | N | N | Y | N |
| Aero the Acro-Bat | No Alternate Title | SunSoft | 1993 | Action > Platformer | GEN | N | N | Y | N |
| Aero the Acro-Bat 2 | No Alternate Title | SunSoft | November 1994 | Action > Platformer | SNES | N | N | Y | N |
