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Iwasaki Electronics Co., Ltd. (岩崎技研工業株式会社; Iwasaki Giken Kogyo Co., Ltd.; formerly Iwasaki Engineering Co., Ltd. in English) was a Kyoto-based company with an office in Tokyo. It was primarily known for making software development tools such as in-circuit emulators. Hiroji Iwasaki was the company president. [1] [2]

Iwasaki was first contracted by Nintendo to reverse engineer Donkey Kong so that it could produce the sequel Donkey Kong Junior. [3] Nintendo did not have the source code as that was written by another company (Ikegami Tsushinki). Iwasaki would go on to program several of Nintendo's early Famicom/NES games. Members of Iwasaki then started a new company in 1986 called Intelligent Systems, which also develops games and tools and has maintained a close relationship with Nintendo for its entire existence.

Research Methods: Hidden data, online resources


  • Space Stranger (Yachiyo) [4]


  • Devil World (programming)
  • Donkey Kong 3 (programming?)
  • Duck Hunt (programming?)
  • Hogan's Alley (programming?)
  • Mario Bros. (programming?)
  • Metroid [disk] (programming)
  • Robot Block / Stack-Up (programming?)
  • Robot Gyro / Gyromite (programming?)
  • Soccer [cart, disk]
  • Tennis [cart, disk] (programming?)
  • Wild Gunman (programming?)
  • Wrecking Crew (programming?)