| Sharp PA cart. |  Sokoban Model PA-3C03 | 198? | Riverhill Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Burai Gekan - Kanketsu-Hen | 1990 | Riverhill Soft. Japan |
| NEC PC-9801 Series 3.5in. disk | Burai Gekan - Kanketsu-Hen | 1990 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | Burai Model HMB-122 | 1990 | Riverhill Soft. Japan |
| MSX Turbo-R disk | Seed of Dragon - Ryu no Matsuei | 1990 | Riverhill Soft. Japan |
| Sega Game Gear cart. | Soukoban Model T-53017 | 1990 | Riverhill Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Toudou Ryunosuke Tantei Nikki - Ougon no Rashinban - Shouyoumaru San Francisco Kouro Satsujin Jiken | 1990 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Burai - Hachigyoku no Yuushi Densetsu Model RHCD1001 | 1991 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | Burai Gekan - Kanketsu-Hen | 1991 | Riverhill Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Kigen - Kagayaki no Hasha | 1991 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | Ougon no Rashinban | 1991 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Prince of Persia Model RHCD-1002 | 1991 | Riverhill Soft. Japan |
| Sharp X68000 Series 5.25in. disk | Toudou Ryunosuke Tantei Nikki - Ougon no Rashinban - Shouyoumaru San Francisco Kouro Satsujin Jiken | 1991 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Burai II - Yami Koutei no Gyakushuu Model RHCD2004 | 1992 | Riverhill Soft. Japan |
| Sega Game Gear cart. | Buster Ball Model T-53027 | 1992 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | J.B. Harold Jikenbo #1: Final Mystery - Murder Club DX P | 1992 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | Kigen - Kagayaki no Hasha | 1992 | Riverhill Soft. Japan |
| Fujitsu FM Towns CD | Prince of Persia | 1992 | Riverhill Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Princess Minerva | 1992 | Riverhill Soft. Japan |
| NEC PC-9801 Series 3.5in. disk | Princess Minerva - Hime no Wagamama Daibouken | 1992 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Top wo Nerae! GunBuster Vol. I | 1992 | Riverhill Soft. Japan |
| Sega Game Gear cart. | Faceball 2000 Model T-53037 | 1993 | Riverhill Soft. Japan |
| NEC PC-Engine CD |  Faceball Taikenban Model RH3001 | 1993 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Faceball Model RHCD3007 | 1993 | Riverhill Soft. Japan |
| Pioneer LaserActive LD-ROM | J.B. Harold – Manhattan Requiem Model PEANJ5004 | 1993 | Riverhill Soft. Japan |
| Pioneer LaserActive LD-ROM |  J.B. Harold – Manhattan Requiem Model PEANU5004 | 1993 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Kidou Keisatsu Patlabor - Griffon-Hen Model RHCD-3006 | 1993 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Top wo Nerae! GunBuster Vol. II | 1993 | Riverhill Soft. Japan |
| Pioneer LaserActive LD-ROM | J.B. Harold – Blue Chicago Blues Model PEASJ5036 | 1994 | Riverhill Soft. Japan |
| Pioneer LaserActive LD-ROM | J.B. Harold – Blue Chicago Blues Model PEASU5036 | 1994 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Princess Minerva | 1994 | Riverhill Soft. Japan |
| NEC PC-Engine CD | Sotsugyou II - Neo Generation | 1994 | Riverhill Soft. Japan |
| Sony PlayStation CD | J.B. Harold - Blue Chicago Blues Model SLPS-02148~9 | 1995 | Riverhill Soft. Japan |
| Sega Saturn CD | J.B. Harold - Blue Chicago Blues Model T-5302G | 1995 | Riverhill Soft. Japan |
| Pioneer LaserActive LD-ROM |  J.B. Harold – Blue Chicago Blues Model PEANJ5017 | 1995 | Riverhill Soft. Japan |
| Sega Saturn CD | Sotsugyou II - Neo Generation | 1995 | Riverhill Soft. Japan |
| Sony PlayStation CD | Sotsugyou II - Neo Generation Model SLPS-00113 | 1995 | Riverhill Soft. Japan |
| Sega Saturn CD | Densetsu no Ogre Battle Model T-5305G | 1996 | Riverhill Soft. Japan |
| Sony PlayStation CD | OverBlood Model SLPS-00392 | 1996 | Riverhill Soft. Japan |
| Sega Saturn CD | Tactics Ogre - Let Us Cling Together Model T-5306G | 1996 | Riverhill Soft. Japan |
