Okinawa Rush is a 2D action-beat 'em up platformer set in a stylized, fantasy version of Okinawa. Players choose one of three martial-arts masters-Hiro, Meilin, or Shin-and battle the Black Mantis clan using swords, nunchakus, and bo staffs. The game features a custom fighting engine with combos, parries, and a two-player local co-op mode, emphasizing fast, fluid combat and high-score challenges.