Easy way to kill Mantis
To kill Psyco Mantis easily, plug your controller into socket 4! Now Mantis can't read your mind and you can shoot him!!! He does try to kill Meryl, so kill him QUICK!!!
submitted by: Solid Snake likes Final F
Bandanna:
Successfully complete the game after not submitting to the torture. At the end, Meryl will be alive and give you the bandanna. When equipped, the bandanna will allow unlimited ammunition on any weapon.
Camera:
Successfully complete the game to unlock the camera. Use the camera to take pictures to see various extras, such as the faces of the development team.
Extreme difficulty setting:
Successfully complete the game to unlock the extreme difficulty setting.
Meryl demo mode:
Successfully complete the game after not submitting to the torture.
Otacon demo mode:
Successfully complete the game after submitting to the torture.
Meryl costume:
Successfully complete the game two times after not submitting to the torture.
Otacon costume:
Successfully complete the game two times after submitting to the torture.
Stealth and Tuxedo costumes:
Successfully complete the game two times with either outcome.
Control intermission view:
Wait for the message "Camera Change" or "Camera Free" to appear during an intermission sequence. Hold L + R to zoom or C-stick to change the view.
Eternal Darkness references:
One of the magazines found in the game has a picture of Alexandra Roivas wearing a bikini. Pick it up, open it, then zoom in on the contents to find her.
Have a saved game file from Eternal Darkness on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
In the Armory, there is a poster of Eternal Darkness in one of the lockers. The poster has a giant picture of a skeleton on it.
The Legend Of Zelda: The Wind Waker reference:
Have a saved game file from The Legend Of Zelda: The Wind Waker on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Super Mario Sunshine reference:
Have a saved game file from Super Mario Sunshine on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Super Smash Bros. Melee reference:
Have a saved game file from Super Smash Bros. Melee on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Zone Of The Enders reference:
Look at one of the posters in Otacon's office to see the graphic from the front of the Zone of the Enders: The 2nd Runner box.
Mario and Yoshi reference:
Look on one of the file cabinets in Otacon's office to find statues of Mario and Yoshi. Shoot the Mario statue to hear the classic "extra life" sound, and increase your health. Shooting the Yoshi statue does not do anything except make a sound.
Game company portraits:
During the battle with Psycho Mantis, three pictures are hanging behind him on the wall. The people pictured are Shigeru Miyamoto (Nintendo), Hideo Kojima (Metal Gear Solid's creator), and Denis Dyack (Silicon Knights).
Alternate ending:
Successfully complete the game three times to hear alternate music during the ending sequence.
Gamecube hardware
Examine the desk in Otacon's office to see a Gamecube with a Wave Bird controller. The video monitor also displays the Gamecube start up screen.
Meryl's view
When you go to the first level five door and Meryl freaks out before you go into the other door, hold [Z] to switch to first person mode from her perspective..
See Meryl smack her butt
When you first reach the passage where Wolf is in her sniping position, Meryl will say that there are mines placed there. After she shows you where to walk, run over a mine. An intermission sequence will start. Meryl will sigh, turn around, and smack her butt.
Ghost photos
In the Commander's room after you have defeated Psycho Mantis, stand in front of the mirror on the right side. Equip the camera, take a picture of Snake, then save it. Reset the game, go to "Special", then to "Photos". Look at the picture, and you will see a ghost grinning at you. The command "Exorcise" will appear. Choose it to make the ghost disappear.
Before you fight Metal Gear Rex, stay where you are and equip your digital camera. Take a picture between Metal Gear's legs and save it. Restart the Gamecube, go to "Special", and highlight "Photos". You should have a picture with a face on it. Press [A] to see a ghost photo. This picture is of Brian Lee, who helped make the game.
Get health during torture
When starting the torture, just press [A] as usual. When the blue bar is empty, turn on auto-fire to get your health back up to full. If you use that feature from the start, the game will "know" and you will die anyway.
Bad stealth change
Unlike the original Metal Gear Solid, in TS while in stealth mode you cannot just walk through the infrared sensors. If you do, they will go off and alert the soldiers; or in the cargo area (exit from tank hanger to fight M1 tank) the gas will go off when you walk through.
Eternal Darkness references
One of the magazines found in the game has a picture of Alexandra Roivas wearing a bikini. Pick it up, open it, then zoom in on the contents to find her.
Have a saved game file from Eternal Darkness on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
In the Armory, there is a poster of Eternal Darkness in one of the lockers. The poster has a giant picture of a skeleton on it.
The Legend Of Zelda: The Wind Waker reference
Have a saved game file from The Legend Of Zelda: The Wind Waker on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Metal Gear Solid: VR Missions reference
In the underground base, go to the third floor then go in front of Rex's nose. Equip the scope, then turn 90 degrees to the left. Look up to see the blue diamond from Metal Gear Solid: VR Missions. The diamond moves as you do, and changes color depending on your location.
Super Mario Sunshine reference
Have a saved game file from Super Mario Sunshine on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Super Smash Bros. Melee reference
Have a saved game file from Super Smash Bros. Melee on your memory card and Psycho Mantis will make a reference to that game prior to the Boss battle.
Zone Of The Enders reference
Look at one of the posters in Otacon's office to see the graphic from the front of the Zone of the Enders: The 2nd Runner box.
Mario and Yoshi reference
Look on one of the file cabinets in Otacon's office to find statues of Mario and Yoshi. Shoot the Mario statue to hear the classic "extra life" sound, sett the "1-Up" message, and increase your health. Shooting the Yoshi statue does not do anything except it saying its name.
Easy dog tags
Run up behind a guard and get Snake to shout "Freeze". Then, run around to the front of them and hold the gun to their crotch. They should give their dog tags to you. If they still refuse, get the Stinger or Nikita out and aim it at the same place. Note: If you hold [Y] while holding [A] with the FAMAS, it will not shoot; use this to hold guards up.
Tank Hangar: Disable lasers permanently
In the Tank Hangar, in the room with the infrared sensors equip the thermal goggles and look to the left wall. You can see the sensors that the lasers are equipped to. If you shoot all of them with the SOCOM, the lasers will be gone for the rest of the game.
Underground Passage: Easier sniper rifle
In Underground Passage (Sniper Alley) where you encountered Sniper Wolf after Meryl gets shot, you must backtrack to get a sniper rifle (PSG-1 PSG-1-T). Instead of returning all the way back to the armory, use the following trick. Backtrack through the commander room. Kill the two guards (one in the bathroom and the other on patrol) or just slip around them and enter the office space. Re supply all your ammunition. You can now enter the door on the left at the end. The PSG-1-T is in this room, with ammunition for it. Slip back out through the commander room where you defeated Psycho Mantis. Go through the caves and get back to Underground Passage (Sniper Alley). Be careful, as Meryl is not there anymore but Sniper Wolf is. Take your hiding position then crawl in front of the door. Hide in the shadows or the dark places in front of the door. Take out the PSG-1-T, zoom in on Sniper Wolf, and battle her until she falls. Snake will say "Got her!". Then, run up through the passage. Make sure to check each slot. The one on the right at the end holds a gun turret plus a ration. You can load up on ammunition, but there is no Sniper Wolf. Go down to the Level 6 Security Door and watch the intermission sequence.
Underground Base: Shortcut
In the Underground Base where Metal Gear: Rex is stored, you will lose your PAL Card Key and must search the green scum for it. You can take a safe long way by going down the stairs they way you came up, or by simply going left of the control room and moving down the catwalk to the corner. Press [Y] ( [Action] ) to climb over the railing. Slide all the way over to Snake's right (if you are not already there), then press [X] to drop down. Press [Y] again to catch a cable just below Snake. This may take awhile; if you miss the cable you will die). Slide to the right again as far as you can go, then drop down. You can destroy the gun turret and begin to search for your key card along that strip. If you cannot find it anywhere in the toxic green scum, kill the rat to get your PAL Key Card. Then go up to the control room to reverse the detonation code. Be careful, as security cameras watch over that location. Toss a chaff grenade before entering and after you leave each time.