- Technical demonstration mode
Successfully complete the following modes in order: 'Training', 'Time Trial', 'Gun Shooting', 'Survival'. Notice: Completing each mode will unlock the next mode in the sequence. Then, technical demonstration mode will be unlocked. Use it to watch the CPU demonstrate its best time with the gun.

- Camera
Reach area B2 of the tank hanger. Then at the end of the hallway to the right of the door where you fight Ocerot is a secret room that is entered after using C4 explosive. In the room are security card level 4 and 6 doors. The camera is in the room behind the security card level 4 door. Alternatively, beat the game with submitting to Ocelot when being tortured. After you receive the camera there will be an 'Album' option on the main menu, use this option to view pictures that have been taken.

- New textures
Successfully complete the game two times using the same saved game file, and getting a different ending both times by getting the bandana and stealth camouflage. Then during the next (third) time the game is played, reach Ninja without using the bandana or stealth camouflage. If done correctly, Ninja will be red. There will now be new textures for Snake and Ninja and new bonus music during the ending.

- Codec frequencies

Name	Frequency
Otacon	141.12
Meryl	140.15
Mel Ling	140.96
Deepthroat	140.48
Nastasha	141.52
Campbell/Naomi	140.85
Master	141.80

- Alternate costume
Successfully complete the game two times using the same saved game file, and getting a different ending both times by getting the bandana and stealth camouflage. Then during the next (third) time the game is played, Snake will change into a tuxedo in the elevator.

- Infinite ammo
Successfully complete the game without submitting to Ocelot when being tortured to save Meryl. Then at the end of the game you will receive a bandana. Save your game, then begin a new game using the same saved game. Now when you equip the bandana you can use an unlimited amount of ammo and will not have to reload your gun.

- Humorous Meryl comments
Look at Meryl with the scope or camera.

- Activate Cheats
Begin the game with the 'mgsi.exe -cheatactivate' command line. Then, press one of the following keys during a game to obtain the corresponding effect:

Effect	Key
Immediately restart level with all items already collected	[F7]
Restore energy	[F2]
Toggle alternate graphics textures	[F8]
Return to normal view from observe mode	[F5]
Toggle alternate graphics textures	[F11]
Toggle alternate graphics textures	[F12]
Toggle alternate graphics textures	[F9]
Infinite ammunition, only at certain points	[F4]
Observe mode; camera can be moved throughout level	[F6]

- Pantless Meryl
Follow Meryl into the Women's bathroom and reach the last stall in under five seconds. Meryl will be caught with her pants down during the next sequence.

- Hidden ghosts
Take a picture of the following locations using the camera to view hidden ghosts who are KCEJ development team members.

Name	Location
Fujimura	Elevator in the Comm Tower B complex
Takade	Ninja room; glass atedga
Kobayashi	Johnny Sasaki holding cell, near DARPA chief
Scott Dolph	Deep down in the dark from the walkway between Comm Towers A and B
Shigeno	Heliport,security caera by staircase
Fukushima	Heliport; looking out to sea from cliff
Kutome	Observation room
Nishimura	Next to Baker's corpse
Toyota	Container in the middle of Raven's warehouse
Tanaka	Heliport; sleeping soldier
Korekado	Men's restroom
Muraoka	Water in cargo dock
Kozyou	Behind the watertank-like structure in the Canyon
Okajima	Maggots of the real DARPA Chef in cell
Hirano	Elevator in Comm Tower B; deep in the shaft of top level
Mukaide	Reflection in wolfdog cave puddle
Shimizu	Wolf dog cave; first crawling point
Makimura	Hidden armory store room; behind the weakened wall
Kobayashi	Rock in canyon
Kojima	Otacon lab; the picture frame to the right
Kaneda	The mirror located in the Women's restroom
Mizutani	When fighting Metal Gear
Tougo	End of boiler room; in Blast Furnace with the steam
Shikama	Electric floor
Yoshimura	Dead end of air duct
Yoshioka	Bridge on the third floor of the blast furnace
Kinbara	Dark area of stairs
Shinkawa	Deep in Sniper Wolf's hallway behind the second pillar
Uehara	Edge of elevator; where the ravens are
Ito	Inside elevator to tank hangar
Jerem Blaustein	Sniper Wolf's corpse
Yamashita	Tip of nuke warhead in nuke storage room
Kimura	MG underground base; tip of Metal Gear 's railgun
Nakamura	In Meryl's blood pool; where she is sniped
Matsuhana	Hallway of corpses; outside Otacons lab
Sato	Comm Tower A; roof destroyed by Hind D missiles
Negishi	Sewage waterfall
Ishiyama	Heliport top of building
Sasaki	Picture frames in the Commander's room
Mori	Lowest point of elevator; Comm Tower B
Sonoyama	Torture machine
Onoda	Where Baker is tied up
Kitao	Decoy Octopus (fake DARPA chief) corpse

- Stealth camouflage
Successfully complete the game with submitting to Ocelot when being tortured to not save Meryl. Then at the end of the game you will receive stealth camouflage. Save your game, then begin a new game using the same saved game. Now when you equip the stealth camouflage enemies (except bosses) and cameras will not detect you.

- Aren't you satisfied? Do you need help? You can try to leave a comment below, or click here to enter into our Forum.