An amazing game.
I bet that the above reviewer's first rhythm game was Guitar Hero, and thus believes that any game without a peripheral or wusing face buttons is bad. Actually, I find this game to be very enjoyable, and really fun, nearly as much as the actual Rock Band. Yes, it isn't as fun as the console versions but it is the pinnacle of how the game could be implemented on a handheld. Much better than Guitar Hero On Tour, easily worth a purchase.