The Game

You have to defend the eight cities of the planet "Vox" from the alien invasion force. You must destroy the alien craft by moving a sight over the screen and firing guided missiles to the sight's location.

There are 40 levels. Each level consists of a set number of alien craft, but an unlimited number of Ammo Saucers and Stunt Planes. To complete a level you mus destroy all the aliens apart from Ammo Saucers and Stunt Planes.

Game Controls

At the start of the game you must choose whether you want to play at the Beginner or Expert level. This is done by pressing B or E. You must then choose how you want to control the sight. You can use either joystick 1 or 2, or the keyboard. If you want, you can redefine the keyboard to use your own keys. This is done by pressing the following keys:

1. Joystick 1
2. Joystick 2
3. Keyboard
4. Redefine keys

To fire the bombs, press the joystick fire button or the SHIFT key on the keyboard. If you press the fire button once and release it you fire one missile. However, if you hold the fire button down for more than half a second, the missiles are released at regular intervals of one third of a second. This saves getting a sore thumb by pressing the fire button about 2,000 times per game. Up to four bombs can be fired at once.

During the game:
F1 - Pause Game, F3 - Reselect game, HELP - Restart same game

End of game:
Press HELP or FIRE to restart game. F3 - Reselect game.

Scoring

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