Unreal

Cheat mode:
Press ~ during game play to display the console window. Then, enter one of the following codes to activate the corresponding cheat function.

Code                Effect
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god                 Toggle God mode
fly                 Flight mode 1
walk                Disable flight and no clipping modes
allammo             Full ammunition
ghost               No clipping 1
feigndeath          Play dead
suicide             Commit suicide
flush               Eliminate graphics artifacts
killpawns           Kill all non-player characters on the level
playersonly         Non-player characters can not move
amphibious          Immune to drowning
slomo 0.5-2.0       Change game speed
killall class       Kill all characters of specified class
open map            Level Select 2
switchcooplevel map Enables coop weapon carrying between levels
cancel              Cancels the open command when attempting to access server
summon object name  Spawn indicated object
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1. Crouch to move down, and jump to move up.
2. Enter a filename from the "Maps" directory or an server's IP address

Object list:
Use one of the following object names with the summon code

dispersionpistol
stinger
eightball
razorjack
rifle
automag
asmd
flakcannon
gesbiorifle
minigun
superhealth
scubagear
translator
quadshot
amplifier
flare
forcefield
jumpboots
health
shieldbelt
voicebox
peacemaker
dampener
flashlight
invisibility
nali
brute
lesserbrute
skaarjwarrior