Unlock First Person Play Mode:
On any difficulty complete the game once (except for the 'Very Easy' setting). An option for first person play mode will then be unlocked on the 'Special' option at the Main menu. Then during gameplay quickly press Triangle(2) after the option has been selected to switch the view to first person.
Unlock Infinite Ammo:
Complete the game without submitting to Ocelot when being tortured to save Meryl and then at the end of the game you will receive a Bandana. Save your game and start a new game using the 'Saved' game. When you now equip the Bandana you will be able to use an unlimited amount of ammo and will not have to reload your gun.
Added by: Sanzano Feb 21st 2007, ID#14516