Unlockable List:
Beat the game to get:
* Tuxedo
* Camera
* Patriot with infinite ammo
* Single Action Army

Camouflage:
* Beat Ocelot non-lethally: Animals – Steady aim
* Beat The Pain non-lethally: Hornet Stripe – Wards off insects
* Beat The Fear non-lethally: Spider – Trades stealth for stamina
* Beat the Fury non-lethally: Fire – Less damage from fire
* Get to the end of the Sorrow – Choke people for stamina.
* Beat Volgin non-lethally: Cold War – Russians will not attack

Monkey Mask:
Get the five best times in Snake Vs. Ape to unlock the monkey mask.

Nightmare Mini-Game:
After Snake's torture, you can save the game. If you load this save in another game, a sword fighting mini-game will begin.

Snake Pukes:
Spin snake in circles in the cure menu to make Snake throw up.

Title Screen Fun:
On the title screen the L3 button changes the pattern in the background. R1 speeds up action and R2 slows it down. L1 switches the black silhouette from the foreground to the background and L2 changes the color of the silhouette. L3 changes the color of the pattern in the background.