| Guzzler | SG-1000 |
JP | 1983 | published, developed |
| Guzzler | SG-1000 |
TW | 1983 | published |
| Q-bert | SG-1000 |
JP | 1983 | published, developed |
| 007 James Bond | SG-1000 |
JP | 1983-06 | published, developed |
| 007 James Bond | SG-1000 |
TW | 1984 | published, developed |
| Challenge Derby | SG-1000 |
JP | 1984 | published, developed |
| Okamoto Ayako no Match Play Golf | SG-1000 |
JP | 1984 | published, developed |
| Okamoto Ayako no Match Play Golf | SG-1000 |
TW | 1984 | published, developed |
| San-nin Mahjong | SG-1000 |
JP | 1984 | published, developed |
| San-nin Mahjong | SG-1000 |
TW | 1984 | published, developed |
| Space Armor | SG-1000 |
JP | 1984 | published, developed |
| Space Mountain | SG-1000 |
JP | 1984 | published, developed |
| Othello | SG-1000 |
JP | 1985-07 | developed |
| Magical Taruruuto-kun | Game Gear |
JP | 1991-07 | published, developed |
| Othello World | Super Nintendo Entertainment System |
JP | 1992-04-05 | published |
| Othello World | Game Boy |
JP | 1994-09-30 | published |
| Okamoto Ayako to Match Play Golf - Ko Olina Golf Club in Hawaii | Super Nintendo Entertainment System |
JP | 1994-12 | published |
| Super Mad Champ | Super Nintendo Entertainment System |
JP | 1995-03-04 | published |
| American Battle Dome | Super Nintendo Entertainment System |
JP | 1995-12-08 | published |
| Othello World II - Yume to Michi e no Chousen | PlayStation |
JP | 1995-12-08 | published |
| Othello Millennium | Game Boy Color |
JP | 1999-10 | published |