Toggle invincibility <cheat> mpcanthurtme 
All weapons and ammo <cheat> mpschuckit 
Full armor <cheat> mpsmithy 
Full ammunition <cheat> mpkohler 
Full ammunition <cheat> mpstockpile 
Unlimited ammunition <cheat> mpbunker 
Teleport to level start with default conditions <cheat> mpbeamme 
Change into indicated character type <cheat> mpmorph 
<character type> 
Toggle no clipping <cheat> mpsixthsense 
Toggle third person view <cheat> mpicu 
Toggle speed display <cheat> mptachometer 
Toggle size display <cheat> mpsizeme 
Toggle rotation display <cheat> mpgrs 
Show position info on/off <cheat> mpgps 
Use keys to edit FOV value <cheat> mpfov 
Use keys to edit vertext tint <cheat> mpvertextint 
Use keys to edit light amplification <cheat> mplightadd 
Use keys to edit light scale <cheat> mplightscale 
Use keys to edit weapon breach <cheat> mpbreach 
Use keys to edit weapon offset 1 <cheat> mpwmpos 
Use keys to edit weapon offset 2 <cheat> mpwpos 
Unknown <cheat> mpdoctordoctor 
Unknown <cheat> mpreloadbutes 
Unknown <cheat> mpmorph 
Unknown <cheat> mptriggers 
Unknown <cheat> mpmph 
Unknown <cheat> mpmillertime 
Unknown <cheat> mpxfiles 
Unknown <cheat> mpconfig 
Unknown <cheat> mpdeathtoall 

Character types:-  Use one of the following entries with the <cheat> mpmorph code.

alien
apesuit
chestburster
combatsynth
convict
drone
droppilot
drunkardtechmale
eisenberg
exosuit
facehugger 
femalelabsynth
femalelabtech
grenadier
guard
guard1
guard2
guard3
guardofficer
harrison
hazmat
heavypredator
laboror
lightpredator
malelabsynth
malelabtech
marine
marine duke
mccain
meanguard
merc1
merc2
merc3
merc4
mhawkpredator
minigunner
obrian
officer
pocguard
pocofficer
praetorian
predalien
predator
pulseriflegirl
pulserifleguy
queen
railgunner
runner
rykov
rykovjr
sadargunner
scientist
scientist1
scientist2
scientist3
scientistchief
smartgunner
smuggler
tamiko