Cheat mode
Type oh dear (case-sensitive) at the main menu to enable single player cheat mode. Enter one of the following codes during game play to activate the corresponding cheat function. Note Type levelx followed by [Space] to enable cheat mode in the demo version of the game.

Effect Code

Full ammunition [Option] + 1
Weapon upgrade [Option] + 2
Full energy [Option] + 3
God mode [Option] + 4
Wow mode [Option] + 5
End mission [Option] + 6
Deactivate enemies [Option] + 7
Helicopter mode [Option] + 8
Tank mode [Option] + 9
Speed mode [Option] + 0
Teleport to safety [Option] + [Ctrl] + 0