Astroll
From Game Developer Research Institute
Established April 28, 1978. Changed their name to Astroll in 1997. Headed by Junichi Mizutari.
Famicom/NES
- Bird Week (JP Publisher: Toshiba EMI)
- Major League (JP Publisher: Irem)
- Mashou / Deadly Towers (JP Publisher: Irem; US Publisher: Brøderbund)
- Napoleon Senki (JP Publisher: Irem)
- Zombie Hunter (JP Publisher: Hi-Score Software)
Game Boy
- F1 Boy (JP Publisher: ASK Kodansha)
- Knight Quest (US/JP Publisher: Taito)
Nintendo DS
- Akiyama Jin Kyouju Kanshuu Zennou JINJIN (JP Publisher: ASK)
- Co-developer: Altair
PC Engine/TurboGrafx-16
- Monster Pro Wres (JP Publisher: ASK Kodansha)
PlayStation
- Cocktail Harmony (JP Publisher: Astroll)
- Cocktail no Recipe (JP Publisher: D3 Publisher)
- Sound Novel Evolution 2: Kamaitachi no Yoru Tokubetsu-hen (JP Publisher: Chunsoft)
PlayStation 2
- American Arcade / Play It! Pinball (JP Publisher: Astroll, EU Publisher: Play It!)
Super Famicom/Super NES
- Gunman's Proof (JP Publisher: ASCII Entertainment)
- Magna Braban: Henreki no Yuusha (JP Publisher: ASK Kodansha)
- Shushoku Game (JP Publisher: Imagineer)
- Sanspo Fishing: Keiryu Ou (JP Publisher: Imagineer)
- Touge Densetsu Saisoku Battle (JP Publisher: Bullet-Proot Software)