Total Mayhem

To activate, CTL+SHIFT+CHEAT from the base screen. 
CTL+C: Gives 1,000 credits. 
CTL+A: Allows buying all weapons (use on base screen) 
CTL+N: Level Skip (use on base screen) 
CTL+P: Move unit to cursor (use in game) 
CTL+I: Invincible (use in game) 
CTL+R: Shield Restore (use in game) 
CTL+M: Monster toggle (use in game)