Gamespot wrote:

The game's title translates to "Soul of a Clump" in English. In Katamari Damashii, the player will use the two analog sticks to control a small character and roll an object through the game's field. As the object gets rolled around, it will continually become entangled with additional objects, turning into a clump of objects that gets bigger and bigger. As the clump gets bigger, the player can entangle even larger objects. Not much else is known about the game at this time.