Taking a break from celestial construction, the King of All Cosmos takes the royal family on vacation to a tropical island paradise, where they become tasked with the responsibility of creating new katamari islands for homeless animals. An epic undertaking of this time, earthly proportions, the King calls upon his pint-sized son, the Prince, and all of his cousins for help.

• Wireless play for up to four people on the PSP system;
• A cast of playable characters that includes the Prince and his cousins – a mix of familiar faces and new additions;
• A host of customization options for player characters, including new masks and headgear, as well as the ability to wear them on the head, face and body;
• A new island interface that highlights player options and the different stages represented by animals in need of new homes.