Psycho Fox is a platform video game published by Sega for the Master System. In Brazil, Tectoy released the game as Sapo Xulé: Os Invasores do Brejo (translated as "Xulé Frog: Invaders of the Swamp"), in which Psycho Fox and his friends were replaced by Sapo Xulé (a Brazilian comic frog character), a pig, a turtle and a mouse.