Virus
Press space to start game then hold down enter
key on keypad and press P to enter pause mode
and press O to get out. The cheat mode is now
on and the following keys are activated:
| C | Special effects on/off |
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| D | Demo on/off |
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| F | Refuels your ship |
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| L | Adds one missile |
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| N | Turns cheat off |
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