Greed (Demo)

KMFDM : Backpack of Holding (full ammo)
OMNI : Omniscience (reveal map)
CHANNEL7 : Rob Lays Eggs (?)
ALLAHMODE : Godmode on/off
BELFAST : Deathkiss (kill all enemies)
RAVEN : Ambrosia (full shield and health)
BEAVIS : Get objective items. Only 100 points left to complete level.
GULLIVER : Midget Mode on/off
BLAMMOx : Get weapon x (1-6)

Courtesy T.Radu. (Information from Cheat Machine)