 | 005 (sample of: 005) | 1981 | Sega | 005 | Maze / Shooter Small | 6.18 |
| | 18 Wheeler (Rev A) (JPN) (clone of: 18wheelr) | 2000 | Sega | 18wheels | | 0.00 |
| | 18 Wheeler Deluxe (Rev A) (JPN) | 2000 | Sega | 18wheelr | | 3.29 |
| | A.B. Cop (Japan, FD1094 317-0169b) (clone of: abcop) | 1990 | Sega | abcopj | | 0.00 |
| | A.B. Cop (World, FD1094 317-0169b) | 1990 | Sega | abcop | Driving / Race (chase view) Bike | 7.38 |
 | Ace Attacker (FD1094 317-0059) | 1988 | Sega | aceattac | Unplayable | 8.00 |
| Ace Attacker (Japan, System 16A, FD1094 317-0060) (clone of: aceattac) | 1988 | Sega | aceattaca | | 0.00 |
 | Action Fighter (FD1089A 317-0018) | 1986 | Sega | afighter | Shooter / Misc. Vertical | 7.00 |
 | After Burner (Japan) (clone of: aburner2) | 1987 | Sega | aburner | Shooter / Flying (chase view) | 0.00 |
 | After Burner (Mega-Tech, SMS based) | 1987 | Sega | mt_aftrb | Shooter / Flying (chase view) | 7.00 |
| After Burner II | 1987 | Sega | aburner2 | Shooter / Flying (chase view) | 9.23 |
 | Air Rescue | 1992 | Sega | arescue | Unplayable | 8.40 |
| | Air Trix | 2000 | Sega | airtrix | | 0.00 |
| | Airline Pilots (Rev A) | 1999 | Sega | alpilota | | 0.00 |
| | Airline Pilots Deluxe (Rev B) | 1999 | Sega | alpiltdx | | 0.00 |
 | Alex Kidd: The Lost Stars (set 1, FD1089A 317-0021) (clone of: alexkidd) | 1986 | Sega | alexkidd1 | | 0.00 |
| Alex Kidd: The Lost Stars (set 2, unprotected) | 1986 | Sega | alexkidd | Platform / Run Jump Scrolling | 7.69 |
 | Ali Baba and 40 Thieves | 1982 | Sega | alibaba | Maze | 7.77 |
| | Alien Front (Rev A) (clone of: alienfnt) | 2001 | Sega | alienfnta | | 0.00 |
| | Alien Front (Rev T) | 2001 | Sega | alienfnt | | 0.00 |
