From Game Developer Research Institute
Dragnet Incorporated (有限会社ドラグネット) is a software development firm in Hyogo Prefecture established in 1990. 
Research Methods: Actual mentions, hidden data, shared staff
- Go Go Ackman (JP Publisher: Banpresto)
- The high score table initials spell out "OZUKA AKUZO," which seems to be a pseudonym used by programmer Kazuo Okabayashi
Game Boy Color
- Speedy Gonzales: Aztec Adventure (programming?; under subcontract with Outback) (US/EU Publisher: Sunsoft)
Mega CD/Sega CD
- Sengoku Denshou (JP Publisher: Sammy)
- Graphics: ?; Sound: Kan's?
- Caliber .50 (US Publisher: Mentrix Software)
- Graphics: ?
- Chiki Chiki Boys (sound driver?) (JP/US/EU/AU Publisher: Sega; BR Publisher: Tec Toy; KR Publisher: Samsung)
- The NewZealand Story (JP Publisher: Taito)
- Wardner no Mori Special / Wardner (JP Publisher: Visco; US Publisher; Mentrix Software)
- Graphics: ?
- Kakugo no Susume (some programming?) (JP Publisher: Tomy)
- Developer: Kan's
- Kouashi Kikou Shidan: Bein Panzer (programming support) (JP Publisher: Sony Computer Entertainment) 
- Natsuiro Kenjutsu Komachi (some programming?) (JP Publisher: NEC Interchannel)
- Kyuukyoku no Sokoban ([some?] programming) (JP Publisher: Itochu)
- Sokoban Basic (programming; under subcontract with Outback) (JP Publisher: Itochu)
- Some Music: Tomo Music
Super Famicom/Super NES
- Dear Boys (some programming?) (JP Publisher: Yutaka)
- Co-Developers: Kan's, Brightside
- Illvanian no Shiro (some programming?) (JP Publisher: Clary)
- Koushien 4 (some programming) (Developer, JP Publisher: Magical)
- Super Drift Out (programming) (JP Publisher: Visco)
- Sound Programming: Kan's?
- Super Sokoban (programming?) (JP Publisher: Pack-In-Video)
- Developer: Thinking Rabbit; ?: Giraffe Soft?
- Zenkoku Koukou Soccer Senshuken '96 (some programming) (JP Publisher: Magical)
- Some Programming: System Prisma
- Official website (Japanese)