Using your mouse, bounce the falling balls. When a ball bounces of the left or right, you score points. Gray balls can go on either side. Blue and Green balls must go only to their respective color. Sending a colored ball to the wrong side, or letting a ball drop off the bottom will cost you a life. You can "juggle" balls to increase a scroe multiplier, but be careful, if you bounce a ball too often, it will get dense and won't bounce anymore!