the object of the game is simple. shake your "maracas" to the beat of a song. there are three different beats to hit, high ones (red), middle ones (yellow) and low ones (green) with 2 on each side of your area, and you have to move your maracas to one of these areas and shake them to hit the beats. this idea is perfect for the wii. the fatal flaw? IT DOESN'T WORK AT ALL! i couldn't even make it through easy mode. for one thing. you have to hold your wii remote and nunchuk in a certain position for it to work. this makes it difficult to play. i mostly get misses and think that it's my wii remote and nunchuck that are failing on me. but then i remember that it's the game. if the controls weren't so bad, this would be much easier and actualy fun to play.