It is tough at first, but once I got it (mostly) down I couldn't stop, especially since I'm the kind of person who really loves playing to beat my own (or a friend's) high (or in this case, low) score. It's a tough time figuring out what power levels correspond to what shots, and you'll want to throw the controller across the room when Kirby comes to a stop right on the edge of the cup where, if there was any kind of real physics in the game, he would have fallen over the edge, for the hundredth time, but by that point you're completely addicted and there's no way out.