HOW TO PLAY: • Tap any tube to move the ball lying on top of any tube into another tube. • The rule is that you can only move a ball on top of another ball if both of them have the same color and the tube you want to move into has enough space. Otherwise the ball is rejected. • You can always restart the level at any time or retrace your steps one by one. • Stack all the balls with the same color into a single tube. • If you get really stuck you can add a tube to make it easier. FEATURES: One finger control. Free & easy to play. No time limits! 1000+ challenging levels! Great game to pass time!