KEYS: Arrow up or space - Fire Arrow down or M - Fire a missile P - Pause on/off S - Start the game Left arrow - Move spaceship to the left Right arrow - Move spaceship to the right Escape - End the game currently playing
INSTRUCTIONS:
If the attacking spaceships come all the way down to your spaceship, you lose two lives.
Bonus life every 10,000 points.
UFO's are worth 1,000 points and a new missile.
Earn 500 points for completing each level.
Attacking spaceships increase and the game moves faster with each level.
Only 6 bullets and one missile are allowed on the screen at a time.