Ep. 37: Monarch of the Heavens (天空の王者 Tenkū no Ōja) is the thirty-seventh episode of Doubutsu Sentai Zyuohger. It features the debut of Cube Octopus and ZyuohKing Octopus. Zyuoh Bird briefly appears in this episode. It also features the first appearance of Larry since Episode 26.