Your spaceship floats in space and you have to destroy all the asteroids, but the more you shoot the more you create. Watch out for the UFOs which can shoot back, and be careful: you only have one ship for every 10,000 points scored.
Use the arrow keys to move
Fire missile – space key
Hyperspace – ctrl or shift key
Pause – P
Quit – Q
Mute – M - Daily video game blog

Angry Birds full solutions here