| Zoo Keeper | Arcade |
? | 1982 | developed |
| Othello | Arcade |
? | 1984-09 | published, developed |
| Big 10 | Arcade |
? | 1985 | published |
| Super Othello | Arcade |
? | 1986 | published |
| Kuru Kuru Pyon Pyon | Arcade |
JP | 1990 | published, developed |
| Kyuukyoku no Othello | Arcade |
? | 1990 | published, developed |
| RyuKyu | Arcade |
JP | 1990-09 | published |
| Fail Gate | Arcade |
? | 1991 | developed |
| Pyon Pyon Jump | Arcade |
JP | 1991 | published, developed |
| Cotton | Arcade |
JP | 1991-04 | published, developed |
| Cotton | Arcade |
US | 1991-04 | published, developed |
| Cotton | Arcade |
WORLD | 1991-04 | published, developed |
| D-Con | Arcade |
? | 1992 | published, developed |
| OOPArts | Arcade |
? | 1992 | developed |
| Fantastic Night Dreams - Cotton | PC Engine / TurboGrafx-16 |
US | 1993-02 | published, developed |
| Fantastic Night Dreams - Cotton | PC Engine / TurboGrafx-16 |
JP | 1993-02-12 | developed |
| Maerchen Adventure Cotton 100% | Super Nintendo Entertainment System |
JP | 1994-04 | published |
| Maerchen Adventure Cotton 100% | Super Nintendo Entertainment System |
US | 1994-04 | developed |
| Panorama Cotton | Mega Drive / Genesis |
JP | 1994-08-12 | published, developed |
| Panorama Cotton | Mega Drive / Genesis |
JP | 1994-08-12 | published, developed |
| Panorama Cotton | Mega Drive / Genesis |
US | 1994-08-12 | developed |
| Makeruna! Makendou 2 - Kimero! Youkai Souridaijin | Super Nintendo Entertainment System |
JP | 1995-03 | developed |
| Game no Tatsujin | Sega Saturn |
JP | 1995-06-09 | developed |
| Quantum Gate I - Akumu no Joshou | Sega Saturn |
JP | 1995-09-29 | developed |
| Hebereke's Popoitto | Sega Saturn |
EU | 1995-12 | developed |
| Hissatsu Pachinko Collection | Sega Saturn |
JP | 1996-01-19 | developed |
| Game no Tatsujin 2 | Sega Saturn |
JP | 1996-03-15 | developed |
| Ongaku Tsukuru Kanadeeru | Super Nintendo Entertainment System |
JP | 1996-04 | developed |
| Sound Novel Tsukuru | Super Nintendo Entertainment System |
JP | 1996-05 | developed |
| Cotton 2 | Arcade |
? | 1997-01 | published, developed |
| Amagi Shien | Sega Saturn |
JP | 1997-02-14 | developed |
| Daisuki | Sega Saturn |
JP | 1997-07-04 | developed |
| Saturn Music School | Sega Saturn |
JP | 1997-08-01 | developed |
| Sound Novel Tkool 2 | PlayStation |
JP | 1997-09 | developed |
| Blue Breaker - Ken yori mo Hohoemi o | Sega Saturn |
JP | 1997-11-27 | developed |
| Blue Breaker - Ken yori mo Hohoemi o | Sega Saturn |
JP | 1997-11-27 | developed |
| Home Doctor | PlayStation |
JP | 1997-11-13 | published, developed |
| Magical Night Dreams - Cotton 2 | Sega Saturn |
JP | 1997-12-04 | published, developed |
| Sound Novel Tkool 2 | Sega Saturn |
JP | 1997-12-18 | developed |
| Guardian Force | Arcade |
? | 1998 | published, developed |
| Othello Shiyouyo | Arcade |
? | 1998 | published, developed |
| Cotton Boomerang | Arcade |
? | 1998-02 | published, developed |
| Highschool Terra Story | Sega Saturn |
JP | 1998-07-23 | developed |
| Saturn Music School 2 | Sega Saturn |
JP | 1998-07-30 | developed |
| Ano Ko Doko no Ko | PlayStation |
JP | 1998-08 | published, developed |
| Guardian Force | Sega Saturn |
JP | 1998-08-06 | published, developed |
| Magical Night Dreams - Cotton Boomerang | Sega Saturn |
JP | 1998-10-08 | published, developed |
| Simple 1500 Series Vol. 1 - The Mahjong | PlayStation |
JP | 1998-10-22 | developed |
| Simple 1500 Series Vol. 2 - The Shougi | PlayStation |
JP | 1998-10 | developed |
| Simple 1500 Series Vol. 3 - The Gomoku Narabe | PlayStation |
JP | 1998-10-22 | developed |
| Simple 1500 Series Vol. 4 - The Reversi | PlayStation |
JP | 1998-10-22 | developed |
| Simple 1500 Series Vol. 5 - The Igo | PlayStation |
JP | 1998-11-19 | developed |
| Simple 1500 Series Vol. 6 - The Hanafuda | PlayStation |
JP | 1998-11-19 | developed |
| Simple 1500 Series Vol. 7 - The Card | PlayStation |
JP | 1998-11-19 | developed |
| Otenami Haiken | Arcade |
? | 1999-02 | published, developed |
| Fantastic Night Dreams - Cotton Original | PlayStation |
JP | 1999-04 | published, developed |
| Simple 1500 Series Vol. 10 - The Billiard | PlayStation |
JP | 1999-04-22 | developed |
| Simple 1500 Series Vol. 9 - The Chess | PlayStation |
JP | 1999-04-22 | developed |
| SuperLite 1500 Series - NumCro | PlayStation |
JP | 1999-05-27 | published, developed |
| SuperLite 1500 Series - Oekaki Puzzle | PlayStation |
JP | 1999-05 | published, developed |
| SuperLite 1500 Series - Suudoku | PlayStation |
JP | 1999-05 | published |
| Cinema Eikaiwa Series Dai-6-dan - Ai no Hate ni | PlayStation |
JP | 1999-07 | published, developed |
| SuperLite 1500 Series - Ano Ko Doko no Ko - Endless Season | PlayStation |
JP | 1999-07 | published, developed |
| SuperLite 1500 Series - Asteroids | PlayStation |
JP | 1999-07 | published |
| SuperLite 1500 Series - Lode Runner - The Legend Returns | PlayStation |
JP | 1999-07 | published |
| SuperLite 1500 Series - Mahjong II | PlayStation |
JP | 1999-07 | published, developed |
| SuperLite 1500 Series - Pinball - Golden Logres | PlayStation |
JP | 1999-07 | published, developed |
| SuperLite 1500 Series - Tenant Wars Alpha - SuperLite 1500 Version | PlayStation |
JP | 1999-07 | published |
| SuperLite 1500 Series - The Curling | PlayStation |
JP | 1999-07 | published, developed |
| SuperLite 1500 Series - Angolmois 99 | PlayStation |
JP | 1999-08-26 | published, developed |
| SuperLite 1500 Series - Pangaea | PlayStation |
JP | 1999-08 | published, developed |
| SuperLite 1500 Series - Reversi II | PlayStation |
JP | 1999-08 | published, developed |
| SuperLite 1500 Series - Seiyou Senseijutsu - Mark Yazaki Kanshuu | PlayStation |
JP | 1999-08 | published, developed |
| SuperLite 1500 Series - Card II | PlayStation |
JP | 1999-09 | published, developed |
| SuperLite 1500 Series - Game de Seishun | PlayStation |
JP | 1999-09 | published |
| SuperLite 1500 Series - Shichuu Suimei - Mark Yazaki Kanshuu | PlayStation |
JP | 1999-09 | published |
| SuperLite 1500 Series - Hanafuda II | PlayStation |
JP | 1999-10 | published, developed |
| SuperLite 1500 Series - Kaette kita Pachio-kun - Dream Collection | PlayStation |
JP | 1999-10 | published |
| SuperLite 1500 Series - Pachi-Slot Hisshouhou! Sammy Revolution | PlayStation |
JP | 1999-10 | published |
| SuperLite 1500 Series - Shougi II | PlayStation |
JP | 1999-10 | published, developed |
| SuperLite 1500 Series - Shinsei Toilet no Hanako-san | PlayStation |
JP | 1999-11 | published |
| Pocke-Kano - Aida Yumi | PlayStation |
JP | 1999-12 | developed |
| Pocke-Kano - Houjouin Shizuka | PlayStation |
JP | 1999-12 | developed |
| Pocke-Kano - Ueno Fumio | PlayStation |
JP | 1999-12 | developed |
| SuperLite 1500 Series - Battle Sugoroku the Hunter - A.R.0062 | PlayStation |
JP | 1999-12-22 | published, developed |
| SuperLite 1500 Series - F1 Grand Prix 1996 - Team Un'ei Simulation | PlayStation |
JP | 1999-12 | published |
| SuperLite 1500 Series - Super Casino Special | PlayStation |
JP | 1999-12 | published |
| SuperLite 1500 Series - Uno | PlayStation |
JP | 1999-12 | published |
| Psyvariar -Medium Unit | Arcade |
? | 2000 | published, developed |
| Pocket Reversi | Neo Geo Pocket Color |
EU | 2000-01 | developed |
| Pocket Reversi | Neo Geo Pocket Color |
JP | 2000-01-27 | developed |
| Rainbow Cotton | Dreamcast |
JP | 2000-01-20 | published, developed |
| SuperLite 1500 Series - Crossword | PlayStation |
JP | 2000-01 | published, developed |
| SuperLite 1500 Series - NumCro 2 | PlayStation |
JP | 2000-01 | published, developed |
| SuperLite 1500 Series - Oekaki Puzzle 2 | PlayStation |
JP | 2000-01 | published, developed |
| SuperLite 1500 Series - Suudoku 2 | PlayStation |
JP | 2000-01 | published |
| SuperLite 3in1 Series - Suudoku-shuu | PlayStation |
JP | 2000-01 | published |
| Hanafuda Shiyouyo | WonderSwan |
JP | 2000-02-17 | published, developed |
| Taikyoku Igo - Heisei Kiin | WonderSwan |
JP | 2000-02 | published, developed |
| Fantastic Night Dreams - Cotton | Neo Geo Pocket Color |
JP | 2000-03-23 | developed |