Bit.Trip Beat puts players in control of a paddle that reflects differently sized and coloured beats, similar to Pong, as they come from the right side of the screen toward the left. It is controlled by holding the Wii Remote sideways and tilting it toward and away from the player to make the paddle go up and down. Gameplay takes place in one of three different phases: Transition, Descent, and Growth, with each phase more difficult than the last. (wikipedia.org)