Bubble Sort

📋 Instructions

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 using the back button.