Then use any of the codes listed after pressing ` to bring down the console:
Cheat - Effect
/god - God Mode
/noclip - No Clipping Mode
/map X - Goto Map X
give item_armor - gives 100 armour
give item_healthkit - give 12 health
give ammo_buckshot - gives 16 shotgun shells or shotgun
give weapon_pistol - gives 30 pistol rounds or the pistol (max 150 rounds)
give weapon_beamgun - } gives 20 polaris gun give weapon_polarisblade -} charges or the polaris blade (max 100 charges)
give weapon_mule - gives 2 rounds mule ammo or mule launcher (max 6 rounds)
give weapon_mechagun - gives 20 mechagun rounds or the mechagun (max 200 rounds)
give weapon_chemgun - gives 10 chemgun charges or the chemgun (max 50 charges)
