The World's Greatest Warrior is the fourth episode in the second season of the Street Fighter TV series.
While visiting their master Gouken, Ryu and Ken are challenged by the evil Akuma, who claims to have stolen Gouken's chi and threatens do the same to them. Akuma gives Ryu and Ken time to train so they might stand a chance against him. During the course of their sparring sessions, however, Ken injures Ryu's arm, which leaves Ryu in a bad state. Akuma uses that to easily defeat Ryu, only to be defeated himself by the power of Ken.