Virus

Virus -- Template:AL-Firebird Software

Press space to start game then hold down the 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
D-Demo on/off
F-Refuels your ship
L-Adds one missile 
N-Turns cheat off

List of cheats