| Name | System | Cheats | Levelcodes | Freezer | Karten | Lösung | Ok? |
| Jaguar XJ 220 | ECS | Ja | Nein | Ja | Nein | Nein | ? |
| Jaktar | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| James Pond | ECS | Ja | Nein | Ja | Nein | Nein | ? |
| James Pond 2 | ECS | Ja | Nein | Ja | Nein | Nein | ? |
| James Pond 3 | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jane Seymore | ECS | Ja | Ja | Nein | Nein | Nein | ? |
| Jeannedarc | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jet Set Willy 3 | ECS | Nein | Ja | Nein | Nein | Nein | ? |
| Jetstrike | ECS | Nein | Ja | Nein | Nein | Nein | ? |
| Jigsaw | ECS | Nein | Ja | Nein | Nein | Nein | ? |
| Jim Power | ECS | Ja | Nein | Ja | Nein | Nein | ? |
| Jimmy White Whirlwind Snooker | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Joe + Max Caveman Ninja | ECS | Nein | Nein | Ja | Nein | Nein | ? |
| John Madden Football | ECS | Ja | Ja | Ja | Nein | Nein | ? |
| Judge Dredd | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jug | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jumping Jackson | ECS | Ja | Ja | Nein | Nein | Nein | ? |
| Jumpy | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jungle Strike | ECS | Nein | Ja | Ja | Nein | Nein | ? |
| Jungle Strike | AGA | Nein | Ja | Nein | Nein | Nein | ? |
| Jungle Strike | CD-32 | Nein | Ja | Nein | Nein | Nein | ? |
| Jupiter Probe | ECS | Ja | Nein | Nein | Nein | Nein | ? |
| Jurassic | ECS | Nein | Ja | Nein | Nein | Nein | ? |
| Jurassic Park | ECS | Nein | Ja | Nein | Nein | Nein | ? |
| Jurassic Park | AGA | Nein | Ja | Nein | Nein | Nein | ? |