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/rules

• If the attacking spaceships comes all the way down to your spaceship you lose two lifes

• Bonus lifes every 10000 points

• When the ufo passes - try to hit it, when you do you gain 1000 points and a new missile

• 500 points for completing each level

• The attacking spaceships may have one more bullet on the screen for each level, the game also moves faster

• You may have 6 bullets on the screen at any time (and only one missile)