1. Tap any tube to select the top ball. The ball will lift up slightly to show it is ready to move.

2. Tap a second tube to move the selected ball into it. You can only place a ball on top of another ball if both are the exact same color.

3. If the tube you tap is empty, you can place any color ball into it without restriction.

4. Each tube has a limited capacity, usually holding four balls. You cannot move a ball into a tube that is already full.

5. Your goal is to sort all balls so that every tube contains only balls of a single color.

6. Plan your moves carefully. You can use empty tubes as temporary holding spaces to rearrange colors.

7. If you get stuck, look for tubes with the same color balls stacked together. Moving them as a group is often efficient.

8. You can undo your last move by tapping the undo button, usually located at the bottom of the screen.

9. Use the restart button to reset the level from the beginning if you want a fresh start.

10. As you progress, levels become harder with more tubes and more colors to sort.

11. There is no time limit, so take your time and think through each move to avoid creating an unsolvable situation.

12. Keep practicing and enjoy the satisfying moment when all colors are perfectly sorted and the level is complete.