[How to Play]
- Lightly touch a tube to move the ball to another tube.
- You can only move balls when the topmost ball is the same color.
- You can move the ball only if there is enough space in the tube.
- You can move any colored ball into an empty tube.
- The level is completed when all tubes are filled with balls of the same color.
- You can find '?' by moving the top ball.
- You can restart the stage at any time if you get stuck.

[Features]
- Control is possible with one finger.
- No time limit, play anytime, anywhere.
- Easy for anyone to enjoy.
- Freely change balls, caps, and backgrounds.
- Use items for easier success!
- Compete with other users and increase your ranking for additional rewards.
- Supports red-green colorblind mode.