Opera House

Established in 1989. [1] Possibly built upon the programming partnership of Satoru Miki and Hiroyuki Fujiwara.

FM Towns

• Advanced Dungeons & Dragons: Heroes of the Lance (JP Publisher: Pony Canyon)

Game Boy

• Bubble Ghost (JP Publisher: Pony Canyon, US Publisher: FCI)

Game Gear

• Side Pocket (Under subcontract from ISCO) (US Publisher: Data East)

Mega CD

• Advanced Dungeons & Dragons: Eye of the Beholder (JP Publisher: Pony Canyon, US/EU Publisher: Sega)

Mega Drive/Game Gear

• Captain America and the Avengers (Under subcontract from ISCO) (US Publisher: Data East, EU Publisher: Sega, BR Publisher: Tec Toy)
• Master of Monsters (Under subcontract from ISCO) (JP Publisher: Toshiba EMI, US Publisher: Renovation)
• Midnight Resistance (Under subcontract from ISCO) (JP Publisher: Data East, US Publisher: Sega)
• Verytex (Under subcontract from ISCO) (JP Publisher: Asmik)

MSX

• Advanced Dungeons & Dragons: Heroes of the Lance (JP Publisher: Pony Canyon)

NES

• Break Time: The National Pool Tour (US Publisher: FCI)

PC Engine/TurboGrafx-16

• Shin Megami Tensei (Under subcontract from ISCO) (JP Publisher: Atlus)

Super Famicom/NES

• Classic Road (Under subcontract from ISCO) (JP Publisher: Victor)
• Classic Road II: Real Kouma Simulation (Under subcontract from ISCO) (JP Publisher: Victor)
• Kyuuyaku Megami Tensei (Under subcontract from ISCO) (JP Publisher: Victor)
• Super Hockey '94 (Under subcontract from ISCO) (JP Publisher: Party Room 21)