Double Dragon Creator Yoshihisa Kishimoto Has Passed Away  Time ExtensionDouble Dragon creator and ‘grandfather of the beat 'em up’ dies aged 64  Metro.co.ukDouble Dragon and Kunio-kun Creator Dies Aged 65  TechRaptorYoshihisa Kishimoto Dies at 64: Farewell to the Creator of Double Dragon, Kunio-kun, and Renegade  Diario ASDouble Dragon, River City Creator Yoshihisa Kishimoto Passes Away At 64  Kotaku