Ryo Koike is a games composer. Koike has been working with Ltd., Koei Tecmo, Team NINJA and KOEI TECMO America. Koike started in 1988 as the composer of Ninja Gaiden (1988). Then, Ryo Koike went on to work on Dead or Alive 3 as the composer. Later, Koike also was part of the team who developed Dead or Alive Ultimate published by Tecmo for Xbox. Most lately, Ryo Koike worked on Ninja Gaiden Sigma 2 Plus.