use arrow keys to move side-to-side, spacebar to shoot, and try to stop the enemy ships from touching the ground.
DISCLAIMER- DO NOT HOLD DOWN SPACE. it crashes the game. WARNING- very glitchy. the enemy ships sometimes don't make the game over screen pop up. Working on making explosions not so big... It is very much a work - in - progress... @Espeoncat82 helped me with this progect