Possibly one of the most disappointing games I've ever played. The moveset feels really sluggish and convoluted, the combat isn't great, the progression feels too restricted for a collectathon, the music note system can be frustrating (though that's apparently improved in the XBLA version) and the final boss is deplorable. The game's okay overall, but I didn't have any reason to expect anything less than greatness. At least the characters are fun.