Sengoku Ace (Sengoku Ace (戦国エース, Sengoku Ēsu)), fully titled Sengoku Ace: Tengai Episode I and also known as Samurai Aces in the English version, is a vertically scrolling shooter released in the arcades by Psikyo in 1993. The first game by Psikyo, Sengoku Ace was designed by Shin Nakamura, the creator of Aero Fighters (Sonic Wings) and the company's founder.