Total Mayhem

To activate, [Ctrl]+[Shift]+CHEAT from the base screen.

[Ctrl]+C Gives 1000 credits
[Ctrl]+A Allows buying all weapons (use on base screen)
[Ctrl]+N Level Skip (use on base screen)
[Ctrl]+P Move unit to cursor (use in game)
[Ctrl]+I Invincible (use in game)
[Ctrl]+R Shield Restore (use in game)
[Ctrl]+M Monster toggle (use in game) (Information from Cheat Machine)