Metal Gear Solid: Portable Ops Cheats

Special Character Passwords
Enter at the password menu:

JUNKER: Cunningham
THE-L: Elisa
E.APPLE: Eva
!TRAUMER: Ga Ko
ERBE: Gene
Hunter-n: Null
R.R.R.: Ocelot
PM-EMS: Paramedic
LQ.N2: Python
IVN =RV: Raikov
DARPA-1: Sigint
SATURNV: Sokolov
T.F-ACID: Teliko
PK +ESP: Ursula
MGA2VE: Venus
1+2-3: Zero

For the EU version use:

CUN=BOA: Cunningham
E.WASP: Elisa
016K/HYH: Eva
GAK.O: Gako Soldier
9-VIPER: Gene
ALL=0: Null
THE-SON: Ocelot
E.M.S.: Paramedic
GUFO: Python
SKAZKA: Raikov
D+ARPA: Sigint
Vostok: Sokolov
SHINE!: Teliko
ESP:ASP: Ursula
@VESPER: Venus
GALAXY-0: Zero

Stealth Camouflage
The stealth camo will let you become invisible for a limited time.
Stealth Camouflage: Beat the game with your Technician status level at 99.

Unlockable characters
Cunningham: Beat Cunningham on ANY difficulty by stamina kill and beat the game before January 1st 1971 in game. You get him after you make a new game.
Elisa: Get a Medic level of 80.
Major Zero: Have a MGS:DGN game save on your psp's memory stick. (Second Playthrough only)
Null: Kill Null by stamina kill or HP kill when you face him twice and beat the game. You get him after you make a new game.
Para Medic: Contact her on the radio on the Comm Tower stage. She will later need to be resceud in the hospital stage. Place spies in the hospital.
Python: Kill Python by stamina kill.
Raikov: Place spies in Western Wilderness before clearing the Guard House mission. Afterwards you should get a report of a handsome prisoner being held there.
Sigint: After Snake is captured and rescued you can contact Sigint on the radio at the Comm stage. He will need to be rescued in the town.
Teliko: Have a MGA game save on your psp's memory stick. (Second Playthrough only)
Venus: Have a MGA 2 game save on your psp's mamory stick. (Second Playthrough only)