Asteroids

Destroy all of the asteroids using the spaceship.

Press Enter to start the game.

Press the right and left keys to rotate.

Press the up key to add thrust.

Press the space key to shoot.

Press the 'x' key to launch the proton wave.

The maximum score 444.

(This game was mostly written by the Greenfoot book. However, I made some of my own methods to improve this game).