Metal Gear Solid 3: Subsistence Cheats

Unlockable--> How to Unlock
Stealth Camo --> Beat game with no alerts or kills
AUSCOM Desert (Australian camouflage desert) fatigue--> Beat Snake Eater once
Desert Tiger camouflage fatigue --> Beat Snake Eater once
Flectar camouflage fatigue --> Beat Snake Eater once
American Flag face paint --> Beat Snake Eater once
Japanese Flag face paint --> Beat Snake Eater once
Spanish Flag face paint --> Beat Snake Eater once
Swedish Flag face paint --> Beat Snake Eater once
Italian Flag face paint --> Beat Snake Eater once
French Flag face paint --> Beat Snake Eater once
German Flag face paint --> Beat Snake Eater once
English Flag face paint --> Beat Snake Eater once
Brown face paint --> Beat Snake Eater once
Soviet Flag face paint --> Beat Snake Eater once
Green Face Paint --> Beat Normal Duel Mode(Disc 2) with 1st place score
DPM Camouflage --> Beat Special Duel Mode(Disk 2) with 1st place score
Banana Camouflage --> Get the 1st record time in every stage of Snake vs. Monkey Mode
Monkey Mask --> Complete all Snake vs. Monkey Mode
Animals --> Defeat Ocelot by stamina depletion
Spider--> Defeat The Fear by stamina depletion
Snake--> Defeat The Boss by stamina depletion
Moss --> Hold up The End
Hornet Stripe--> Defeat The Pain by stamina depletion
Fire --> Defeat The Fury by stamina depletion
Cold War--> Defeat Volgin by stamina depletion
Stealth Camo (alternate)--> Shoot all the green frogs in every area of the game
EZ Gun --> Playing the game on Very Easy mode.
Spirit Camo (Footsteps cannot be heard)--> Walk all the way to the end during boss fight against The Sorrow
Patriot (The Boss‘s gun)--> Complete the game once
EZ Gun (Modes above Very Easy)--> Capture all 48 types of edible plants and animals
Single Action Army (Revlover) --> Choose the SAA on the right during final duel
Infinity Face Paint (Alternate)--> Catch a Tsuchinoko (alive) can only be caught using mousetraps. Best place to find Graniny Gorki South (Where you fight The Fear)
Tuxedo (Camo)--> Complete the game once
Infinity Face Paint (Ininite ammo)--> Beat the game with the rank Foxhound

You can mess around with the animation and background at the title screen by pressing different buttons.
L3 --> Changes the background design.
L1 --> Changes the color of Snake and the soldier.
L2 --> Changes the color of Snake and the soldier.
R3 --> Changes the screen's color.
R2 --> Slows down the Snake vs. soldier animation.
R1 --> Speeds up the Snake vs. soldier animation.
Triangle --> Turns the background black so that you can only see Snake fighting the soldier.