Arrow keys to use rocket. Amount of rocket fuel is indicated by the green bars on the bottom and top of the screen. Green areas refill rocket fuel. Z to slow down midair, which uses rocket fuel.

X to activate moving blocks.

Spacebar to jump off of whatever you're touching.

Goal: reach the next checkpoint before the time runs out, indicated by the white bars on the left and right side of the screen. Checkpoints look like diamonds.