Unlockable Character Passwords:
Enter the password in the Recruit Password section of the in-game menu.
| YLFSSVBCDLGO | Dengeki Playstation Magazine Soldier |
| ZKUJZUYXJUH | Famitsu Magazine Soldier |
| TTOGZWSREYD | Unlock Arms Magazine Soldier |
Boss Rush Mode:
Have a gamesave of Metal Gear Solid Portable Ops on your memory stick to unlock Boss Rush mode.
Unlock special characters
| Naked Snake | Beat easy mode in infinity mission. |
| Old Snake | Beat Medium mode in infinity mission. |
| Raiden | Beat hard mode in infinity mission. |
| Roy Cambell | Beat extreme in infinity mission. |
All Taunts
Complete the soldier list to receive all 16 taunts, one of which is only available through this method. Once you have all 68 soldiers, complete a round of infinity mission to unlock all taunts.