1. O.D.T. (66)
2. Oddworld 2: Abe's Exoddus (63)
3. Oddworld: Abe`s Exoddus (52)
4. Off-world Interceptor Extreme (37)
5. Ogre Battle (82)
6. Olympic Summer Games (39)
7. Omega Boost (72)
8. One (86)
9. One Piece Grand Battle 2 (119)
10. One Piece Grand Battle 3 (187)
11. One Piece Mansion (49)
12. Option Tuning Car Battle (59)
13. Option Tuning Car Battle 2 (47)
14. Other Life Azure Dreams (95)
15. Outlaws Of The Lost Dynasty (52)
16. Over Drivin' 3: Hot Pursuit (90)
17. Overblood (65)
18. Overblood 2 (51)
19. Overboard - Passwords (74)