The core gameplay from the "Katamari Damacy" series is unchanged; the player, as the diminutive Prince, controls a "katamari" to collect objects smaller than the katamari, causing the katamari to grow and collect even larger objects, as to meet various objectives given by the King of All Cosmos. After successfully clearing any level once, the player can then attempt a time attack challenge on that level to make a katamari of a given size in the shortest time possible. Eternal modes, where the player is allowed to roll without any time limits, are available once a perfect score is obtained on a level. The player can also change to another character that the second player also uses- Marcy.