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
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