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

Digital camera:
Successfully complete the game. The digital camera will be available when a new game is started.

The digital camera is locate in Strut E Shell 1. Go to the bottom of the screen and locate the platform with three red lights on it. Climb up onto it and equip the Z.O.E. Box. When the conveyor stops, press Action to climb on. You will be taken to another room. Press Action again to get off and retrieve the Digital Camera. Exit the room in the same fashion

Control intermission sequences:
Much like the Codec transmissions, you can also press L1 or R1 to zoom in during an intermission. The harder you press, the more the zoom. You will hear a gunshot. While holding the button, use the Right Analog-stick to move the view. Also during certain parts of some intermissions are sections where it looks like you are viewing the scene through a camera or binoculars. You can use the zoom feature with these as well, and the onscreen distance or zoom indicators will increase realistically the more you zoom in. This also can be done at the beginning of the game, before pressing Start.

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. You will also hear who they really feel about their women.


Stealth, Bandanna and Wig bonuses:
Complete the following goals to get the Stealth (invisibility), Bandanna (unlimited ammo for Snake), and the Wig (unlimited ammunition for Raiden). To get Stealth and Bandanna, complete the Tanker mission three times on three different difficulty settings (all on the same saved file) and get all the dog tags. To get Stealth and Wig, complete the plant three times on three different difficulty settings (all on the same save file) and get all the dog tags.

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

European Extreme difficulty:
Successfully complete the game under the normal difficulty setting.

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

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 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 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

Unlockable Dog Tag Extras
Tanker:
To get the Bandana: Get 40 dog tags in the tanker stage
To get Stealth: Get 80 dog tags in the tanker stage

Plant:
Brown Wig(Infinity Ammo): Get 80 dog tags in the plant stage
Stealth: Get 120 dog tags in the plant stage
Orange Wig(Infinity grip): Get 160 dog tags in the plant stage
Bluw Wig(Infinity 02): Get 200 dog tags in the plany stage

Remember that you need to complete the level before you get the extras and that you may need to go to other levels of difficulty to get all the tags