is a variation of the old shell game, sometimes called "3-card Monty".  Currently, there are three levels.  In the first level you have to "find the pea" under the cup after several switches.  Each play gets faster and faster.

When you complete this level you move to the cards.  Find the Queen after the cards have been moved around.  Finally, the last level is bouncing balls.  You must follow the target ball as the balls bounce around the screen.  Very hard!