Sort colors in different tubes

Features:
- Infinite levels
- Play offline
- Available for watch, tablet and phone

How to play:
Sort the colors! Click on a tube to pick up the ball on top and click on another tube to drop it there.
You can only drop it on an empty tube or on a tube with a ball of the same color on top. In case you can't solve one level with the available tubes, you can create another empty tube.