| Game Title | Country | Year | Publisher |
| AA Harimanada | XX | 19XX | Unknown Publisher |
| Ace of Aces | JP | 1991 | SEGA Enterprises Ltd. |
| Action Fighter | US | 1986 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Aerial Assault | US | 1990 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| After Burner | US | 1988 | SEGA of America, Inc. |
| Air Rescue | US | 1992 | SEGA Enterprises Ltd. |
| Aleste | XX | 1988 | SEGA Enterprises Ltd. |
| Alex Kidd: The Lost Stars | US | 1988 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Alex Kidd: BMX Trial | US | 1987 | SEGA Enterprises Ltd. |
| Alex Kidd: High-Tech World | US | 1989 | SEGA of America, Inc. |
| Alex Kidd in Miracle World | US | 1986 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Alex Kidd in Shinobi World | US | 1990 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| ALF | US | 1989 | SEGA of America, Inc. |
| Alien 3 | BR | 1992 | Arena Entertainment, Tec Toy Industria de Brinquedos S.A. |
| Alien Syndrome | US | 1987 | SEGA Enterprises Ltd., SEGA of America, Inc. |
| Altered Beast | US | 1989 | SEGA of America, Inc. |
| American Baseball | US | 1989 | SEGA of America, Inc. |
| American Pro Football | US | 1989 | SEGA of America, Inc. |
| Andre Agassi Tennis | US | 1993 | Lance Investments |
| Anmitsu Hime | JP | 19XX | Unknown Publisher |
| Arena - Maze of Death | US | 19XX | Unknown Publisher |
| Ashura | XX | 19XX | Unknown Publisher |
| Assault City | US | 1990 | SEGA Enterprises Ltd. |
| Astro Warrior | US | 1986 | SEGA of America, Inc. |
| Atomic Runner | US | 19XX | Unknown Publisher |
| Aztec Adventure | US | 1987 | SEGA Enterprises Ltd., SEGA of America, Inc. |