Keys
- Space or F - Fire
- Left arrow or J - Move
spaceship to the right
- Right arrow or L - Move
spaceship to the left
- P - Start the game
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Instructions/rules
- Start with 3 ships, shoot all planes and
helicopers.
- Your progress in the actual level is
shown on bottom of the screen.
- At the end of each level there is a big
mothership appears. Destroy it to reach
the next level.
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