In-game reset:-  Hold L1 + R1 + L2 + R2 and press Start + Select during game play.

Control title screen:-  Press L2 to hear a gunshot and see a flash at the title screen. Use the Right Analog-stick at the title screen to change the background color.

Control Codec sequences:-  Press the L1 or R1 to move the faces. Press L1 for a negative response such as "No way" or "Why don't you do it?". Press R1 for positive responses. The responses change depending on who you are talking to.

Complete the Tanker mission once in any difficulty, or the Tanker/Plant mission once in any difficulty and you unlock the USP Suppressor for the Tanker. It is on the crows nest where you get the thermal goggles, after the battle with Olga.

Photograph Mode - Successfully complete bomb disposal mode, hold up mode (alternative missions), and eliminate mode to unlock photograph mode in the Alternative Missions.

Raiden X - Successfully complete 100% of the missions as Raiden and Ninja Raiden.

Sunglasses - After completing the game two times, Snake and Raiden will be wearing sunglasses.

Unlock Boss Survival - Beat the full game (Tanker and Plant) to unlock boss survival mode

Unlock Cast Theater -Beat the full game (Tanker and Plant) to unlock the casting theater

Unlock Everything - If you have a save from the Document of Metal Gear Solid 2 PS2 DVD's 5 VR missions you will unlock everything in the game with it on your memory card before starting Subsance up.

Unlock Extreme & European Extreme - Beat the full game in any difficulty (Tanker and Plant) to unlock Extreme and European Extreme difficulty modes.

Unlock MGS1 Snake - Complete 100% missons with Raiden, Raiden(Ninja), X Raiden, Snake, Plisken, and Snake (tuxedo) to use Snake from Metal Gear Solid 1.

Unlock MGS1 Snake in VR Missions - Complete 100% of Snake's, Pliskin's, and Tuxedo Snake's VR Missions.

Unlock Ninja Raiden in VR Missions - Beat 50% of Raidens VR Missions to unlock Ninja Raiden in the VR Missions

Unlock Pliskin in VR Missions - Beat 50% of Solid Snakes VR Missions to unlock Pliskin in the VR Missions

Unlock the USP Suppressor - For the Tanker mission only.

Unlock Tuxedo Snake - Get 100% with Snake and Pliskin to unlock Tuxedo Snake.

Metal Gear Solid 1 Snake - Successfully complete 100% of the VR missions as Snake, Pliskin, Tuxedo Snake, Raiden, Ninja Raiden, and Raiden X.

Alternate ending sequence - Successfully complete a Snake Tale to unlock the M9. Begin game play and use M9 to stun the Bosses instead of killing them to view an alternate ending sequence.

Tanker chapter: Marines in boxer shorts - You can make the Marines in the Tanker chapter appear in their underwear in the room where Metal Gear is being held. Press L2 two or three times when start at the title screen then select the normal difficulty setting. When you get to where you have to take pictures of Metal Gear, the nearby marines will not be wearing their pants.

Tanker chapter: USP Suppresser - After completing the game once and saving it, start a new game with the saved data. On the Navigation Deck after the battle with Olga, go up the ladder to where you would normally get the Thermal Goggles. On the middle platform, before the goggles, should be a USP Suppresser on the left. You can now equip the USP with it and muzzle the gunfire for the rest of the Tanker chapter. After you complete the Tanker chapter three or four times, you can find the USP Suppresser on the navigational deck after you defeat Olga. It is located on the second floor on the lookout, near where the thermal goggles are found.

Tanker chapter: Secret passage - In the Holds 2 room, go all the way to the left to find a hatch. Open it, and you will climb down into a small area. Crouch and go through the vent on the ground. You will eventually see a gun clip fall through and a man will start talking. His shadow will be on the ground. Wait there until his shadow leaves, then move through the area. After you get past that, you will reach an opening and an intermission sequence will begin. After it ends, crawl through a vent on the right side of the small room. After you crawl through, you will find a ladder. Climb up the ladder, and it will lead you to a small perch. Look down at the bottom of Metal Gear RAY, and you will see Ocelot standing there. He will then go away. You can keep doing this and experiment with things to do with Ocelot.

Tanker chapter: Vulcan Raven action figure - Immediately when you enter the engine room, there is a small Vulcan Raven figure standing on the ground with a flashlight shining on it. If you shoot it, it will start shooting very small balls around and will repeatedly say "Raven!", or something similar.

Avoiding alert mode - When a patrolling guard sees you, run into a room where the screen goes black and tells you where you are. The game will not go into alert mode, evasion mode, or caution mode.

Easy radio shots - To knock out an enemy's radio easily, when you hold them up shoot it (on the belt to the right of their back). Also shoot an enemy's radio when they are knocked out to prevent them from calling for help if they wake up.

Deactivating C4 bombs - When deactivating the "Baby C4 bombs", the last one for the very easy and easy difficulty settings is under the submarine hanging from the ceiling in the bottom of Strut A Shell 1, where you started out as Raiden. The one on the hard difficulty settings always move around the room, usually in the caged area under the stairs or behind the computer controls.

Beating Gurgolon - To beat Gurgolon use your stinger to hit one of his targets. Afterwards, pull out an AK74-U and shoot the little blue thing swarming around where you shot him. The target will get smaller making it more difficult to hit.Eventually you will destroy the target, repeat until all targets are destroyed. Also theres a funny bit to the level: put on the BDU (enemy outfit) and equip the AK47-U. Let him trap you with his soundwaves and let him fire his eyebeams.Before it hits you, an explanation point pops above his head, which changes into a heart. He picks Raiden up and walks off with him as love music plays. Unfortunately you fail the mission.

Cheat Device Codes:

(M)  0E3C7DF2 1853E59E  EE8883E2 BCBF0E72

Both Character's Codes

Infinite Health  DE8E6886 BCA99B83  DE8E6896 E0AB9BE7

Max Grip Level  9185BB7A BCA99B83  FEFEFFC8 BCA99CAF

999 Dog Tags  9185BB7A BCA99B83  FEFEFEC8 BCA99E6A

Infinite M9 Ammo  9185BB7A BCA99B83  FEFEFEF8 BCA9C292

Infinite Chaff Grenades  9185BB7A BCA99B83  FEFEFE8A BCA9C292

Infinite Stun Grenades  9185BB7A BCA99B83  FEFEFE94 BCA9C292

Infinite Rations  9185BB7A BCA99B83  FEFEFE08 BCA9C292

Infinite Bandages  9185BB7A BCA99B83  FEFEFE16 BCA9C292

Infinite Pentazamin  9185BB7A BCA99B83  FEFEFE10 BCA9C292

Have Stealth  9185BB7A BCA99B83  FEFEFE1E BCA99B84

Infinite Magazines  9185BB7A BCA99B83 FEFEFE9E BCA9C292

Infinite Grenades  9185BB7A BCA99B83  FEFEFE98 BCA9C292

Have Scope  9185BB7A BCA99B83  FEFEFE0A BCA99B84

Have Medicine  9185BB7A BCA99B83  FEFEFE14 BCA99B84

Have Thermal Goggles  9185BB7A BCA99B83  FEFEFE20 BCA99B84

Have Box 1  9185BB7A BCA99B83  FEFEFE2E BCA99B84

Stiff As A Board  DE8D253E F8AA9B83

Fat Mode  DE8DF8DE F8AADB83

Snake Codes

Have USP/Infinite USP Ammo  9185BB7A BCA99B83  FEFEFEFA BCA9C292

Have Bandana   9185BB7A BCA99B83  FEFEFECE BCA99B84

Have USP Supressor   9185BB7A BCA99B83  FEFEFED4 BCA99B84

Have Wet Box  9185BB7A BCA99B83   FEFEFE3E BCA99B84

Raiden Codes

Have SOCOM/Infinite SOCOM Ammo   9185BB7A BCA99B83  FEFEFE84 BCA9C292

Have PSG1/Infinite PSG1 Ammo  9185BB7A BCA99B83  FEFEFE86 BCA9C292

Have RGB6/Infinite RGB6 Ammo   9185BB7A BCA99B83  FEFEFE80 BCA9C292

Have Nikita/Inf. Nikita Ammo  9185BB7A BCA99B83  FEFEFE82 BCA9C292

Have Stinger/Inf. Stinger Ammo  9185BB7A BCA99B83  FEFEFE8C BCA9C292

Infinite Claymores  9185BB7A BCA99B83  FEFEFE8E BCA9C292

Infinite C4  9185BB7A BCA99B83  FEFEFE88 BCA9C292

Have Directional Microphone  9185BB7A BCA99B83  FEFEFE96 BCA99B84

Have HF.Blade  9185BB7A BCA99B83  FEFEFE90 BCA99B84

Have Coolant  9185BB7A BCA99B83  FEFEFE92 BCA99B84

Have AKS-74U/Inf. AKS-74U Ammo  9185BB7A BCA99B83  FEFEFE9C BCA9C292

Have M4/Infinite M4 Ammo  9185BB7A BCA99B83  FEFEFE9A BCA9C292

Have PSG1-T/Inf. PSG1-T Ammo  9185BB7A BCA99B83  FEFEFEA4 BCA9C292

Infinite Porn  9185BB7A BCA99B83  FEFEFEA0 BCA9C292

Have B.D.U.  9185BB7A BCA99B83  FEFEFE12 BCA99B84

Have B.Armour  9185BB7A BCA99B83  FEFEFE1C BCA99B84

Have Mine.D  9185BB7A BCA99B83  FEFEFE18 BCA99B84

Have Sensor A  9185BB7A BCA99B83  FEFEFE1A BCA99B84

Have Sensor B  9185BB7A BCA99B83  FEFEFE24 BCA99B84

Have Night Vision Goggles  9185BB7A BCA99B83  FEFEFE26 BCA99B84

Have Scope  9185BB7A BCA99B83  FEFEFE22 BCA99B84

Have Digital Camera  9185BB7A BCA99B83 FEFEFE2C BCA99B84

Have Level 5 Card  9185BB7A BCA99B83  FEFEFE2A BCA99B88

Have Shaver  9185BB7A BCA99B83  FEFEFE34 BCA99B84

Have Phone  9185BB7A BCA99B83  FEFEFE36 BCA99B84

Have Box 2  9185BB7A BCA99B83  FEFEFE32 BCA99B84

Have Box 3  9185BB7A BCA99B83  FEFEFE3C BCA99B84

Have Box 4  9185BB7A BCA99B83  FEFEFE3A BCA99B84

Have Box 5  9185BB7A BCA99B83  FEFEFEC4 BCA99B84

Have SOCOM Supressor  9185BB7A BCA99B83  FEFEFEC0 BCA99B84

Have AKS-74U Supressor  9185BB7A BCA99B83  FEFEFEC2 BCA99B84

Have MO Disc  9185BB7A BCA99B83  FEFEFECA BCA99B84

Have Special Wig  9185BB7A BCA99B83  FEFEFED6 BCA99B84

Have Wig A  9185BB7A BCA99B83  FEFEFED0 BCA99B84

Have Wig B  9185BB7A BCA99B83  FEFEFED2 BCA99B84

Have Wig C  9185BB7A BCA99B83  FEFEFEDC BCA99B84

Have Wig D  9185BB7A BCA99B83  FEFEFEDE BCA99B84