Codes

  • All Weapons

    start the game with msg.exe -cheatenable in the command line. Then in game use the following codes:

    EffectCode
    C4Backspace + 7
    ClaymoreBackspace + 6
    FamasBackspace + 2
    GrenadeBackspace + 3
    NikitaBackspace + 4
    PSG-1Backspace + 0
    SocomBackspace + 1
    StingerBackspace + 5
    Stun/Chaff GrenadeBackspace + 9
    Stun/Chaff GrenadeBackspace + 8

    Contributed By: ECFan89.

  • Cheat Codes

    Start the game with mgsi.exe -cheatenable in the command line. Then press the following keys during the game:

    EffectCode
    Infinite Ammo (only in certain areas)F4
    Normal ViewF5
    Observe Mode (Camera can be moved)F6
    Restart level w/ all collected itemsF7
    Restore healthF2
    Toggle graphics texturesF8, F9, F11, F12

    Contributed By: Starky27.

Unlockables

  • Demo Theater Mode

    Beat the game with either Meryl or Otacon ending to unlock this option. Plays all the Cutscenes and Codec calls threw the whole game depending on what ending you picked.

    Contributed By: godreault.

  • Infinite Ammo:

    Do not submit to Ocelot Torture and you will get the Meryl Ending after you beat the game. When you load up the save file you will now have a “Bandanna” in your inventory. When the Bandanna is equipped, you will now have Infinite Ammo.

    Contributed By: godreault.

  • Stealth Camo:

    Do submit to Ocelot Torture and you will get the Otacon Ending after you beat the game. When you load up the save file you will now have a “Stealth Camo” in your inventory. When the Stealth Camo is equipped, you will now be Invisible to the soldiers. (Except the Bosses, they will be able to see you)

    Contributed By: godreault.

Easter Eggs

  • Staff on the Codec

    Go to a jammed area like the place where you fight Ocelot and set your codec to 140.7

    Contributed By: mkwong98.

Secrets

  • Animal rights

    Shooting crows and rats will make roy and naomi upset. They'll contact you through your codec and tell you how mean you are.

    Contributed By: Ecstacy2003.

  • Easier ninja

    While fighting the ninja throw a chaff grenade and he will freeze letting you hit him.Once you hit him he will fall to his knees and won't get up until all the yellow dust from the chaff grenade has fallen.

    Contributed By: Ecstacy2003.

  • Tuxedo Costume

    Complete the game and save it after the credits end. Load the game and complete it again. Save the game after the credits end. Load the game once more and begin playing. Snake will change into a tuxedo in the elevator during the game.

    Contributed By: XPLICIT187.

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