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Manabu Kiguchi is a programmer and quality assurance tester and manager for games published by Koei Tecmo-owned companies, including Team Ninja. The games he has worked on include the Dead or Alive, Ninja Gaiden and Monster Rancher series, as well as Quantum Theory and Spirit Camera: The Cursed Memoir. Kiguchi was one of three support programmers for Metroid: Other M, alongside Shinya Okada and Shuhei Shiota. He has also been credited as M. Kiguchi.