Kai Hifumi
甲斐 日富美
| Kai Hifumi甲斐 日富美 | |
| Language | Japanese |
| Title | Released | Role | As | Note |
| RAY-GUN | 1990-05-15 | Staff | Kai Hifumi | Special thanks |
| Dragon Knight II | 1990-12-20 | Staff | Kai Hifumi | Special thanks |
| FOXY 2 | 1991-04-12 | Staff | Kai Hifumi | Special thanks |
| ELLE | 1991-06-23 | Staff | Kai Hifumi | Special thanks |
| SHANGRLIA | 1991-08-28 | Staff | Kai Hifumi | Special thanks |
| Tenshin Ranma | 1992-03-18 | Staff | Kai Hifumi | User support, product management |
| Jan Jaka Jan | 1992-11-13 | Staff | Kai Hifumi | Special Thanks |
| METAL EYE | 1993-04-28 | Staff | Kai Hifumi | User support |
| WORDS WORTH | 1993-07-22 | Staff | Kai Hifumi | Special thanks |
| SHANGRLIA2 | 1993-09-30 | Staff | Kai Hifumi | Special thanks |
| Dragon Knight 4 | 1994-02-25 | Staff | Kai Hifumi | Special thanks |
| METAL EYE 2 | 1994-08-31 | Staff | Kai Hifumi | Special thanks |
| Doukyuusei 2 | 1995-01-31 | Staff | Kai Hifumi | Special Thanks |
| Isaku | 1995-08-25 | Staff | Kai Hifumi | Special thanks |
| Kakyuusei | 1996-06-07 | Staff | Kai Hifumi | Special thanks |
| Doukyuusei 2021 remake | 1999-08-27 | Staff | Kai Hifumi | Special thanks |
| Kisaku | 2001-03-30 | Staff | Kai Hifumi | Special Thanks |
| Biniku no Kaori ~Netori Netorare Yari Yarare~ | 2008-03-28 | Staff | Kai Hifumi | Production Cooperation |
| Maro no Kanja wa Gatenkei | 2013-04-25 | Staff | Kai Hifumi | Special thanks |
| Maro no Kanja wa Gatenkei 2 | 2013-08-08 | Staff | Kai Hifumi | Special thanks |
| Akeiro Kaikitan | 2016-03-25 | Staff | Kai Hifumi | Development assistance |