When you click the flag, press the space bar to fly and avoid the rocks! Bug: If you completed the game or hit a rock, sometimes when you reclick the flag, it will show you as still hitting the rock or still in the winning condition. If you encounter this problem, just simply click the flag again. Watch this video at CS First to learn how to build it: https://csfirst.withgoogle.com/c/cs-first/en/game-design/cave-surfing-game/side-scrolling-games-and-if-else-statements.html