The King of All Cosmos has bumped his head and lost all his memory. The Prince and his cousins created RoboKing to replace the King, but it went out of control and destroyed all the stars in the Cosmos. To clean up the mess made by RoboKing and bring back the King’s memory, the Prince and his Cousins must roll their Katamaris and bring color back to the world. So get ready to roll that Katamari once more!