1. Launch the game Bubble Shooter HD 2 on your mobile device.

2. Choose your preferred game mode: Novice, Expert, or Master, depending on your skill level.

3. Observe the board filled with colored bubbles arranged in rows at the top of the screen.

4. Use your finger to aim the bubble launcher at the bottom of the screen.

5. Tap the screen to shoot your bubble toward bubbles of the same color.

6. Match three or more bubbles of the same color to make them pop and earn points.

7. The more bubbles you pop in a single shot, the higher your score will be.

8. If your shot fails to pop any bubbles, it counts as a foul.

9. Accumulate several fouls and a new line of bubbles will appear at the top as a penalty.

10. Plan your shots carefully to avoid fouls and to create chain reactions for bonus points.

11. Use the preview bubble to strategize your next move and clear the board efficiently.

12. Continue playing until all bubbles are cleared or the bubbles reach the bottom of the screen.

13. Track your performance through the Stats feature and aim to beat your highest score.

14. Experiment with different tactics in each game mode to improve your skills.

15. Keep playing to master the game and enjoy the HD graphics and smooth gameplay.