Quick Instructions:

right/left arrow: rotate, up/down arrow: forward/reverse, space: fire

If the keys don't seem to work, click anywhere on the game and try again.

Full Instructions:
Use the keyboard controls described below to manoeuvre your ship, destroying as many asteroids as you can while avoiding collision with them. Also watch for the flying saucers armed with guided missiles. 

If you warp into hyperspace, your ship will momentarily disappear then reappear on another part of the screen, gradually fading in. During this time the ship is invulnerable. Likewise, when your ship is destroyed, a new one will appear in the centre of the screen. You can still manoeuvre and fire during this time so if you are in imminent danger, you have a couple of seconds to get out of it.

Additional Controls:

S: Start Game

P: Pause Game

H: Hyperspace

M: Toggle Sound*

D: Toggle Graphics Detail*

*Note: If the game appears to run slowly on your machine, try turning sound and/or graphics detail off. This will not affect game play.