The King is back in all his brilliance to keep the Prince and his cousins continuously rolling as you take the adventure on the road with your PSP. The royal family, taking a break from their celestial construction, find themselves on vacation on their very own sunny island when the Prince finds himself cast with the responsibility of creating islands of katamari for homeless animals. Play as the Prince or any of his returning and new PSP exclusive cousins as you roll up new objects in all new levels. Take on friends in wireless play as you roll up as many objects as possible! Enjoy the fun and quirkiness in an all-new installment for its first ever foray into the handheld world.

• Creative gameplay and art style returns: Old-time fans and newcomers to the series will rejoice as they see the all new interface that features an island setting where you can choose your options and stages represented by animals in need of a place to flourish.
• Brand new tropical levels: Roll throughout different locations and environments, the Prince can enter buildings then roll into aquariums, and more in all new Katamari worlds.
• Ever expanding cast of characters: New Cousins created specifically for the PSP make their premier appearance. Customize your cousins with new masks, headgear and more... you can dress the Prince and cousins wearing items on their head, face and torso, all at the same time!
• We brought world peace with co-op play - now it's time for a battle: Battle three of your friends for a total of 4 players through wireless Ad Hoc play as you compete to roll up as many objects as possible!