If you've had your fill of rolling up objects in Touch My Katamari's included levels, Namco Bandai will provide some new DLC stages around March 2012 or later. What makes these levels unique is they contain objects requested by fans.
For those up to snuff with their Japanese, Namco Bandai is accepting suggestions until December 1 on items and people you'd like to roll up. Namco Bandai is open to any request so feel free to put in entries about a brand name snack, popular appliance, or even your favorite celebrity.
Also, since Touch My Katamari is confirmed to have DLC, this pretty much means it will require a memory card to play. Without a memory card, you can't save your data nor boot up the game.