1. Launch the game and select the first level to start playing.

2. Tap and hold on the screen to activate your rocket booster. The longer you hold, the higher you'll fly.

3. Release your finger to turn off the rocket booster and let gravity take over.

4. Use your rockets to navigate through each level, avoiding obstacles such as spikes, lasers, and other hazards.

5. Collect coins along the way to increase your score.

6. Each level has a different objective, such as reaching the end of the level, collecting a certain number of coins, or completing the level within a specific time limit.

7. Use the coins you collect to purchase upgrades for your rocket, such as stronger boosters or longer-lasting fuel tanks.

8. If you hit an obstacle or hazard, you'll have to restart the level from the beginning.

9. Complete each level as quickly and efficiently as possible to earn a high score.