Gaming Today reports a ripoff and advises you not to buy Beautiful Katamari and encourage this kind of business practice:
Beautiful Katamari's "downloadable" content includes four new levels, each costing 200 Microsoft Points. The problem: the content is stuff that is already on the disc, only you aren't able to access it until you fork over even MORE money than you already have paid for the game.
i.e., You're paying additional money for keys to unlock the content that is already on the disc. Four separate keys, each costing 200 points.