You need rhythm and fast fingers. If for some reason, you have neither, you're screwed. Like if you had no fingers at all. But yeah. Obviously you shouldn't bother playing a rhythm game and then complaining it's too hard because you have no sense of rhythm.
 "Mytheria"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 3"){kind=icon}
 "The Fancy Pants Adventures"){kind=icon}