Cannons
You are provided with three anti-molecular cannons
per game and unlimited ammunition. One extra can-
non will be earned for every 10,000 points you score.
Although you may earn a large number of extra can-
nons, the greatest number that will be displayed at
the bottom of the screen will be eight, any number
over eight will still be available for use.
Direct Hits
Your cannon will be destroyed whenever an alien is
allowed to make direct contact. After a hit, you will
Game Play
As the game begins, you find yourself at the center
of the first galactic sector. From the far corners of
the sector, the alien colonists begin their attack
moving directly toward your position. Rotate the
direction of the cannon by using the Joystick. For
faster rotation, press Button 3 and move the Joystick
at the same time. As the aliens come within range,
fire with Button 4. If it becomes impossible to main-
tain a controlled defense, you are allowed to ZAP all
the aliens at once by pressing Button 2. However,
you are only allowed to use the Zap one time in each
sector.
After you have cleared a sector of alien invaders,
you will be immediately transported to a different
part of the galaxy. Each new sector will be more
challenging, with increasingly aggressive aliens.
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