| Titre | Année | Genre |
|---|---|---|
| Othello Shiyouyo | 1998 | Réflexion |
| Otogizoushi Urashima Mahjong | 1989 | Mahjong |
| Otona no Mahjong | 1988 | Mahjong |
| Out Run | 1986 | Course |
| Out Zone | 1990 | Shoot em up |
| Outfoxies, The | 1994 | Action |
| OutRunners | 1992 | Course |
| Over Drive | 1990 | Course |
| Ozma Wars | 1979 | Shoot em up |
| Ozon I | 1983 | Shoot em up |
