The object is to bust as many metal balls as possible in each 60 second round by clicking on clusters of 3 or more of the same color. The more balls in a cluster, the more points you receive. As you search and click, balls continue to drop from the ramps above and threaten to overflow the board.

Just when you have it down, watch out -- the board rotates! If you can clear the balls, or at least keep them from overlfowing before time runs out, you advance to the next round and receive bonus points for each open space on the board. If you can clear the board, you also receive 50 points for each second left on the clock.

Popped balls and open spaces at the end of a round are worth 10 points each on Levels 1 and 2, 20 points each on Levels 3 and 4, 30 points each on Levels 5 and 6, 40 points each on Levels 7 and 8, and 50 points each on higher Levels. With each passing round, the insanely intense action increases -- the game gains speed, points increase, more balls drop from the ramps, and you'll be sure your world is turning upside down!