Type iamacheater during game play to enable
cheat mode. Then, enter one of the following codes to activate
the corresponding cheat function.

Code
More units [Shift] + [Ctrl] + N
Level skip [Shift] + [Ctrl] + W
More monsters [Shift] + [Ctrl] + M
Increase brightness [Shift] + [Ctrl] + [Plus]
Decrease brightness [Shift] + [Ctrl] + [Minus]
Advance to final level [Ctrl] + V
Level skip [Ctrl] + [Alt]