Devastation cheats and cheat codes for PC

While playing the game press [Tab] to bring down the console window, 
then type one of the following cheat codes:

Code - Effect
postal - Unlock all weapons and items
midgets - Enable Midget mode
god - Enable Godmode
ghost - Enable No clipping mode
fly - Enable Flight mode
bigheads - Enable Big head mode
allammo - Get maximum ammunition
walk - Restore normal mode

ratheads - Grathius with rat heads
pigheads - Grathius with pig heads
orwell - Grathius with horse, pig, and rat heads
horseheads - Grathius with horse heads
Note: There is no confirmation message.

Get All weapons
Type "dopefish" during the game for all weapons.

Jump to any level:
Usage: sptravel <level name&qt; 

Use any of the following level names:
SP3M6-BukkoRoof.dvs 
SP3M5-Bukko.dvs
SP3M4-Transit.dvs
SP3M3-Zangai.dvs
SP3M2-RiversOfWaste.dvs
SP3M1-Chozo.dvs
SP2M5-IchthyaNorth.dvs
SP2M4-IchthyaSouth.dvs
SP2M3-TheAquifers.dvs
SP2M2-CardboardCounty.dvs
SP2M1-MarketMadness.dvs
SP2M0.dvs
SP1M4-Docks.dvs
SP1M3-UrbiaNorth.dvs
SP1M2-UrbiaAsylum.dvs
SP1M1-UrbiaSouth.dvs
SP0M5-Embarcadero.dvs
SP0M4-TheRock.dvs
SP0M3-TopOTheTower.dvs
SP0M2-Chinatown.dvs
SP0M1-SomaSunset.dvs
SP0M0-TheLab2.dvs
SP0M0-TheLab.dvs

Jump to any Intermission sequence:
Usage: sptravel <Intermission name&qt; 

Use any of the following intermission names:
SP-Intro.dvs
SP-Outro.dvs