First person play mode:
Successfully complete the game once under any difficulty setting except for
"very easy". A selection for first person play mode will be unlocked on the
"Special" option at the main menu. Quickly press Triangle(2) during game play
after selecting that option.
Alternate costumes:
Successfully complete the game twice under any difficulty setting with the same
saved game file. Snake will have a tuxedo, Meryl will have Snake's original
outfit, and Ninja will have a red and blue cyborg costume during the third time
the game is played.
