Ousama Katamari, known as the King of All Cosmos, is a central character in the Katamari Damacy series. He is the flamboyant and eccentric ruler of the cosmos, whose accidental destruction of the stars sets the game's events in motion. The King assigns his son, the Prince, the task of rolling up objects on Earth to recreate the stars and celestial bodies. Ousama Katamari is known for his dramatic personality, unique appearance, and humorous, often nonsensical dialogue, serving as both a mentor and comic relief.