Medal of Honor Underground (PSX)

Ultimate Cheat
Enter the Options menu and enter the Passwords option. Enter ENTREZVOUS as a password. Highlight and click 'send.' Re-enter the Passwords option and enter PORTECLEFS as a password and send. Enter the Passwords option one more time and enter LEMONSTRE as a password and send. Highlight and select Secret Codes and enable Invincibilty and Unlimited Ammo. You will now have infinite health and ammo for the whole game and the secret mission 'Panzerknacker Unleashed.'


Cheat codes:
Enter these codes at the Options/Passwords screen. The "Send" button will turn green if you entered the code correctly. Then you can turn
the codes On or Off at the Options/Secret Codes screen. Note! The codes will only work on the levels you've already completed. (Bouncing bullets
will work all through the game once you've entered the code)