It's easy to learn.
Players see six circles arranged in a larger circle on the screen.
Blue and red dots emanate from the center of the group of circles. For instance, if the dots head down to the circle in the lower right, players shake their right maraca down low. Dots heading to the upper left means players should shake their left maraca above their head. It gets tough fast, though, as players try to follow rapidly changing directions and stay with the beat. It's fun for individual players, but the real laughs come from everybody watching.