Sengoku Ace (戦国エース), also known as Samurai Aces in the English version, is a vertically-scrolling shoot 'em up video game originally releasaed in the arcades by Psikyo in 1993. It was the first game by Psikyo and was designed by Shin Nakamura, the creator of Aero Fighters (Sonic Wings) and the company's founder.