The challenge increases as cubes slam down faster and faster and the number of forbidden black cubes increase. Mess up, and the cubes will either crush you or push you off the edge. And to make matters worse, the game will always remind you just how intelligent you are by calculating and displaying your I.Q. for all the world to see.

The better you get at clearing the stages, the higher your I.Q. And with over 20 stages to master, your I.Q. is sure to be tested.