While "Options" is highlighted at the main menu,
hold L1 + L2 + R1 + R2 to display the "Security
Clearance" screen, with a password entry prompt
for the "Invulnerable", "Infinite ammo", "All
missions", and "All bonuses" options. Hold X and
press D-pad Left or Right to change one of the
characters in the desired password. Release X to
input that character. Press Right to highlight the
next character and repeat until the password is
filled. Press Square to accept the password. If
you entered the code correctly, the text will turn
orange. Press Triangle to exit the password entry
Enter the code 66BAUER to gain invincibility
Put in 72DESSLER for all missions.
Put in 54PALMER for all bonuses.
Enter 62ALMEIDA as a code.