Aisystem Tokyo

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Aisystem Tokyo logo

Aisystem Tokyo (株式会社アイシステム東京) was a group company of Aisystem established on May 2, 1989. Its head office was located near its parent company's in Matsudo, Chiba, while the development division was located in Chiyoda, Tokyo (hence the name of the company?). [1] [2]

Aisystem Tokyo allegedly went bankrupt around 2005 [3], but Aisystem still exists and continues to operate the Go-Net online igo service and salon.

(We decided to write the name as "Aisystem" long ago, but the company and its parent have written it inconsistently over the years [Ai System, AI-system].)

The following list came from a company overview. We have attempted to corroborate it by running code comparisons and looking at game credits.


  • Change Air Blade (Sammy)
This is an educated guess. The company website just says "Air Blade." (Former NMK staff allegedly worked on this.)
  • Go Go Cowboy [medal game] (Sammy)
  • Doki Doki Kingyo Sukui [medal game] (Sammy)
  • "Under Development"


  • Pachislot Adventure 3: Bitaoshii 7 Kenzan! (programming) (JP Publisher: Coconuts Japan)
  • Perfect Bowling (programming?) (JP Publisher: Tonkin House)
A Coconuts Japan game [4]

Game Boy

  • Konchuu Hakase (some graphics) (JP Publisher: J-Wing)
Sound: Sound Media
  • Pachio-kun 2 (programming) (JP Publisher: Coconuts Japan)
  • Pachio-kun 3 (programming) (JP Publisher: Coconuts Japan)
  • Pachislot Kids 2 (programming) (JP Publisher: Coconuts Japan)
  • Pachislot Kids 3 (programming) (JP Publisher: Coconuts Japan)

Game Boy Color

  • Kandume Monsters Parfait (JP Publisher: Starfish)
  • Macross 7: Ginga no Heart o Furuwa Sero!! (JP Publisher: Epoch)
?: Gamates
  • "Under Development"

Mark III/Master System

  • Solomon no Kagi: Oujo Rihita no Namida (programming?) (JP Publisher: Salio)

Mega Drive/Genesis

  • Bad Omen / Devilish: The Next Possession (programming?) (JP Publisher: Hot-B; US Publisher: Sage's Creation; KR Publisher: Samsung)
  • Go-Net (JP Publisher: Sega)
  • Hit the Ice (US Publisher: Taito)
  • Nakajima Satoru Kanshuu F-1 Hero MD / Ferrari Grand Prix Challenge (programming, sound) (JP Publisher: Varie; US/EU Publisher: Flying Edge)
  • Rainbow Islands Extra (programming?) (JP Publisher: Taito)
  • Thunder Fox (programming, graphics) (JP/US Publisher: Taito)
  • Uchuu Senkan Gomora (JP Publisher: UPL)
Sound Driver?: Cube

Mega CD/Sega CD

  • Genei Toshi: Illusion City (JP Publisher: Micro Cabin)
Planning, Production: Arrow Soft
  • Night Striker (JP Publisher: Taito)
  • The Ninja Warriors (JP Publisher: Taito)


  • Choro Q [DoCoMo 503i]
  • City Connection [au]
  • City Connection [DoCoMo 503i]
  • City Connection DX [DoCoMo 504i]
  • Dengeki! Radar Sakusen [DoCoMo 503i]
  • Exerion [au]
  • Exerion [DoCoMo 503i]
  • Exerion DX [DoCoMo 504i]
  • Gundam Smash [DoCoMo 503i]
  • Isoge! Iscandar [DoCoMo 503i]
  • Kokumin-teki Bishoujo [DoCoMo 503i]
  • Newtype Kenkyuujo [DoCoMo 503i]
  • Party Gundam [DoCoMo 503i]
  • 積み上がれG! [DoCoMo 503i]
  • 撃て!波動砲! [DoCoMo 503i]
  • ヤマト波動砲ルーレット [DoCoMo 503i]


  • Daisenryaku II: Campaign Version (JP Publisher: Micro Cabin)
  • Super Shanghai: Dragon's Eye (JP Publisher: Hot-B)

Nintendo 64

  • Nushi Tsuri 64 (some graphics?) (JP Publisher: Pack-In-Video)
Developer: DDL

PC Engine/TurboGrafx-16

  • Final Blaster (programming) (JP Publisher: Namco)
  • The New Zealand Story (JP Publisher: Taito)

PC Engine CD/TurboGrafx-CD

  • "Karaoke Game"


  • G Darius (JP Publisher: Taito; US/EU Publisher: THQ)
  • King of Bowling (JP Publisher: Coconuts Japan)
  • Kochira Katsushikaku Kameari Kouenmae Hashutsujo: High-Tech Building Shinkou Soshi Sakusen! no Kan (JP Publisher: Bandai)
  • Nishijin Pachinko Tengoku EX (graphics) (JP Publisher: KSS)
  • "Pachinko Simulation"
  • Puzzle Bobble 3 DX / Bust-A-Move 3 DX / Bust-A-Move '99 (programming, some graphics) (JP Publisher: Taito; EU/US Publisher: Acclaim)


  • Darius Gaiden (JP Publisher: Taito, US Publisher: Acclaim)
  • Skull Fang: Kuuga Gaiden (JP Publisher: Data East)

Super Famicom/Super NES

  • Honkaku Shougi: Fuuunji Ryuuou (graphics) (JP Publisher: Virgin)
  • Honkakuha Igo: Gosei (JP Publisher: Taito)
  • Honke Hanafuda (JP Publisher: Imagineer)
  • Jissen Kyoutei (programming, graphics) (JP Publisher: Imagineer)
Game Design: ?; Sound (Except Music Composition): Pure Sound
  • Operation Thunderbolt (US Publisher: Taito)
  • Thunderbirds, Gerry Anderson's: Kokusai Kyuujotai Shutsudou seyo! (some programming) (JP Publisher: Bandai)
Co-Developer: Nova; Some Programming: Soft Machine?; Sound: USP

Virtual Boy

  • "Sports"


  • "Common Adventure Development System"
  • "Under Development"


  • Lode Runner for WonderSwan (programming, graphics) (JP Publisher: Banpresto)
Coordination: Arowana; Stage Design: Fupac
  • Nice On (JP Publisher: Sammy)
Some Sound: Studio PJ
  • "Under Development"


  • Super Shanghai: Dragon's Eye (some programming, some graphics, some sound?) (JP Publisher: Takeru [Brother])
Production, Direction, Some Graphics: Hot-B; Some Programming: Soft Machine?; [Some?] Sound: Cube