During the game, open the console and enter the following codes:
Devastation: Cheat Codes Free Download
dopefish – get all weapons and money, turn on “god mode”
god – enable “god mode”
allammo – Get 999 Ammo
ghost – enable the ability to walk through walls
walk – turn off turn on the ability to walk through walls
sptravel SP3M6-BukkoRoof – go to the last level