While in game press "Enter" and type "<cheat> x" (include the space after <cheat>), and replace x with one of the codes below and then press "Enter" to enable the code.
Code Result
mpcanthurtme - God mode on/off
mpschuckit - Add weapons and ammo
mpsmithy - Full armor
mpkohler - Full ammo
mpstockpile - Full ammo (maybe with differences?)
mpbeamme - Beam player to level start with initial conditions
mpsixthsense - No clip on/off
mpicu - 3rd person mode on/off (HUD doesn't visible in this mode)
mptachometer - Show speed info on/off
mpsizeme - Show size info on/off
mpgrs - Show rotation info on/off
mpgps - Show position info on/off
mpfov - Edit (with keys) FOV value
mpvertextint - Edit (with keys) vertext tint
mplightadd - Edit (with keys) light amplification
mplightscale - Edit (with keys) light scale
mpbreach - Edit (with keys) weapon breach
mpwmpos - Edit (with keys) weapon offset 1
mpwpos - Edit (with keys) weapon offset 2
mpmorph [X] - Morph into a different creature. Replace [X] with one of the following...
alien
apesuit
chestburster
combatsynth
convict
drone
droppilot
drunkardtechmale
eisenberg
exosuit
facehugger
femalelabsynth
femalelabtech
grenadier
guard or 1 or 2 or 3
guardofficer
harrison
hazmat
heavypredator
laboror
lightpredator
malelabsynth
malelabtech
marine
marineduke
mccain
merc1 or 2 or 3 or 4
mhawkpredator
minigunner
obrian
officer
pocguard
pocofficer
preatorian
predailen
predator
pulseriflegirl
pulserifleguy
queen
railgunner
runner
rykov
rykovjr
sadargunner
scientist or 1 or 2 or 3
scientistchief
smartgunner
smuggle
tamiko
Face Hugger Tip:
When you play as the facehugger in the first part of the alien campign you have to get a person by themself to get a host. Keep going until you reach the guy sleeping in a chair. Don't waste your time listening to people talk or waiting for one guy to leave. Just keep going until you reach the guy sleeping in a chair.
More of a Strategy:
When fighting a tough character as the Predator (i.e. the Queen), and are low on health and/or energy, use the energy pistols secondary fire to stun them. This will give you just enough time to heal yourself or use the energy sift.
