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Weapons passwords
Beat the game to unlock the “Passwords” option in the “Extras” menu. Unlock the following weapons by entering the corresponding case-sensitive passwords:
1911 custom – 1aytmmymhk
Desert Eagle Long Barrel – deskyhstyl
Mk. 23 – mekakorkkk
Mosin Nagant – mnsoymsyhnto
Patriot Weapon – pkhhnwhsjt
Scanning Plug S – skynytktjp
Thor .45 – tshsniammr
Type 17 Pistol – jmsotsynrn
Corpse Camo
To unlock the Corpse Camo, get 41 continues.
Altair costume
To unlock the Altair costume from Assassin’s Creed, beat the game to unlock the “Passwords” option in the “Extras” menu. Enter the password “aottrykmyn”.
South American disguise in act 2
At the beginning, take out all of the PMC guards. Go into the closest building on the right to find a South American disguise and a twin barrel shotgun.
Shadow Moses passwords
In Shadow Moses, use one of the following codes instead of the one Otacan gives you to unlock the corresponding bonuses. You can only use one code per game:
100,000 Drebin Points – 14893
20% off Drebin’s Store – 12893
Opening to Old L.A. 2040 iPod song (increases Snake’s Accuracy) – 78925
Policenauts Ending iPod song (causes soldiers held by Snake to fall asleep when touched.) – 13462
iPod song passwords
Beat the game to unlock the “Passwords” option in the “Extras” menu. Unlock the following iPod songs by entering the corresponding case-sensitive passwords:
Desperate Chase song – thomas
Mobs Alive song – abraham
Midnight Shadow song – theodore
Gekko song – george
Subsistence Action song – smgo2play
Unlockable weapons
Unlock the following weapons by performing the corresponding tasks:
Bandanna – Complete a single-player session without killing anyone (including bosses). You can do this on any difficulty
Desert Eagle, Long Barrel – Earn the fox emblem on a single-player session
Digital Camera – In the nomad vehicle during the mission intermission; you can unlock a special photo by picking up this item in stage 4 instead of earlier
Patriot Future Assault Weapon – Earn the big boss emblem on a single-player session
Race (Ricochet) Gun – Clear the single-player game once
Rail Gun – Beat crying wolf
Scanning Plug S – Log more than 10 hours of metal gear online play time on the same profile as your metal gear 4 game. You purchase this from drebin.
Solar Gun – Collect the five statues (those of the 4 battle beauties and the frog soldier/haven troopers in stage 1) using non-lethal means on their respective idols
Stealth Item – Complete a single-player session without instigating a single alert (caution is okay, but not alert). You can do this on any difficulty.
Thor 45-70 – Earn the fox hound emblem on a single-player session
World War I Pistol – Earn the hound emblem on a single-player session
Unlockable emblems
Unlock the following emblems by performing the corresponding tasks:
Ant Emblem – Shake 50 enemies for items.
Assassin’s Emblem – Beat the game with 50+ knife kills, 50+ CQC holds, and 25 or less alerts.
Bear Emblem – Choke 100 enemies to death
Bee Emblem – Use the scanning plug S or syringe on 50 enemies
Big Boss Emblem – Beat the game on the highest difficulty with no deaths, no alerts, no kills, no recovery items, no stealth suit, no bandanna items, in under 5 hours.
Blue Bird Emblem – Give friendly soldiers 50 items
Centipede – Get less than 75 alert phases, less than 250 kills, and over 25 continues.
Chicken – Get over 150 alert phases, over 500 kills, over 50 continues, use over 50 recovery items and finish the game in over 35 hours.
Cow – Activate over 100 alerts
Crocodile – Have over 400 kills
Eagle Emblem – Get 150 headshots
Fox Emblem – Beat the game on normal or higher w/ no deaths, 5 or less alerts, no kills, no recovery items, no stealth suit, no bandanna items, in under 6 hours.
Fox Hound Emblem – Beat the game on hard or higher w/ no deaths, 3 or less alerts, no kills, no recovery items, no stealth suit, no bandanna items, in under 5.5 hours.
Frog Emblem – Dive or roll 200 times
Gecko Emblem – Press against walls for a total of 1 hour
Giant Panda Emblem – Complete the game after 30 cumulative hours of play
Gibbon Emblem – Hold up 50 enemies
Hawk Emblem – Be admired by 25 friendly soldiers
Hog Emblem – Get 10 combat highs
Hound Emblem – Beat the game on hard or higher w/ no deaths, 3 or less alerts, no kills, no recovery items, no stealth suit, no bandanna items, in under 6.5 hours.
Hyena Emblem – Pick up 400 dropped weapons
Inch Worm Emblem – Crawl on the ground for a total of 1 hour
Jaguar – Get over 75 alert phases, less than 250 kills, and less than 25 continues.
Leopard – Get over 75 alert phases, less than 250 kills, and over 25 continues.
Little Gray Emblem – Collect all 69 weapons
Lobster Emblem – Spend a total of 2.5 hours crouching
Mantis – Finish the game with no alerts activated, no continues, no rations, noodles or regains used and in under 5 hours
Octopus – Beat the game without activating any alert phases.
Panther – Get over 75 alert phases, over 250 kills, and less than 25 coninues.
Pig – Use more than 50 recovery items
Pigeon – Beat the game without killing a single person.
Puma – Get over 75 alert phases, over 250 kills, and over 25 continues.
Rabbit Emblem – Look at 100 playboy pages
Raven – Beat the game in under 5 hours
Scarab – Perform over 100 rolls
Scorpion – Get less than 75 alert phases, less than 250 kills, and less than 25 continues.
Spider – Get less than 75 alert phases, over 250 kills, and over 25 continues.
Tarantula – Get less than 75 alert phases, over 250 kills, and less than 25 continues.
Tortoise – Spend more than 60 minutes inside the drum can or card board box (this can be done throughout the game, not all at once)
Wolf – Beat the game with no continues and no rations, regains, or noodles used
Single-player rewards
To unlock new combat vests and The Boss Extreme difficulty, beat single-player mode.
Unlockable ammo
Beat the game to unlock the following ammunitions for purchase from Drebin:
Emotive ammo (cry)
Emotive ammo (laughter)
Emotive ammo (rage)
Emotive ammo (scream)
Smoke Grenade (blue)
Smoke Grenade (green)
Smoke Grenade (red)
Smoke Grenade (yellow)
iPod songs
Snake will find songs to put on his iPod as the game progresses. The following songs have the corresponding effects on gameplay.
Beyond the Bounds
Effect: Increases stun damage done by snake from non-lethal weapons
Location: Stage 4 shadow moses, tank hangar. After power is restored, backtrack to the upper catwalk and explore all rooms.
Big Boss
Effect: Increases stun damage and increases snake’s accuracy
How to unlock: Earn the big boss emblem
Bio-hazard
Effect: Cause soldiers held by snake to scream in terror.
Location: Stage 3 europe, midtown.
Destiny’s Call
Effect: Cause soldiers held by Snake to become enraged.
How to unlock: Received randomly as a gift from a militia or rebel soldier when snake gives them a healing item.
Flowing Destiny
Cause soldiers held by snake to cry
Location: Stage 4 shadow moses, canyon. Before leaving the canyon area, examine the rocky walls for a hole hiding this item.
Fury, The
Effect: Cause soldiers held by snake to become enraged.
Location: Stage 2 south america, cove valley village. Inside the fire ravaged house.
MGS 4 Love Theme / Action
Effect: Causes soldiers held by snake to cry.
How to unlock: Received randomly as a gift from a militia or rebel soldier when snake gives them a healing item.
Opening – Old L.A. 2040
Effect: Increases snake’s accuracy.
Location: Stage 4 shadow moses, nuclear warhead storage B2. Input ’78925′ into otacon’s lab computer.
Policenaughts Ending
Effect: Cause soldiers held by snake to fall asleep on touch
Location: Stage 4 shadow moses, nuclear warhead storage B2. Input ’13462′ into otacon’s lab computer
Rock Me
Effect: Increases snake’s amount of life recovered from items and other means
Locations: Stage 2 south america, confinement facility. Island in the south-eastern quadrant.
Sailor
Effect: Increases snake’s amount of life recovered from items and other means
Location: Stage 2 south america, vista mansion. Between the east wall and a cargo container.
Show Time
Effect: Cause soldiers held by snake to scream in terror
How to unlock: Received randomly as a gift from a militia or rebel soldier when snake gives them a healing item.
Snake Eater
Effect: Increase the life recovery rate of snake through items and other actions.
How to unlock: Earn all 40 game clear emblems.
Subsistence
Effect: Increase snake’s accuracy.
How to unlock: Play a game of metal gear online. You must start the match with at least 2 players.
Unlockable masks
Unlock the following masks by performing the corresponding tasks:
Big Boss – Get the big boss emblem. When you wear this mask, it causes enemies near you to cower in fear and/or run away screaming.
Crying Beauty – Defeat crying beauty without killing her.
Drebin – Get over 60 weapons.
FaceCamo – Defeat laughing octopus. This mask functions like the octocamo suit, but just on your head.
Laughing Beauty – Defeat laughing beauty without killing her.
Metal Gear Solid Snake – Start the shadow moses level.
Otacon – Hit otacon with the metal gear Mk. II during an interactive mission brief.
Raging Beauty – Defeat raging beauty without killing her.
Raiden A – Hit sunny with the metal gear Mk. II during an interactive mission brief.
Raiden B – Hit naomi with the metal gear Mk. II during an interactive mission brief.
Roy Campbell – Hit campell with the metal gear Mk. II during an interactive mission brief.
Screaming Beauty – Defeat screaming beauty without killing her.
Young Snake – Start the eastern europe level.
Young Snake with bandana – Start the eastern europe level.
Unlockable costumes
Unlock the following costumes by performing the corresponding tasks:
Altair from Assassin’s Creed costume – Get the assassin’s emblem.
Civilian clothes – Start the eastern europe level.
Infinite Ammo Bandana – Complete the game without killing any enemies. It can also be purchased from drebin.
5,000,000 DP – Complete the game.
Opitcal Camo – Complete the game without going into alert phase. It can also be purchased from drebin for 5,000,000 DP after completing the game.
Middle East Militia Disguise – Go to the middle east militia safe house.
South American Militia Disguise – Go to the south american cove valley village.
Suit – Complete the game.
Codec numbers
Otacon – 141.12
Rosemary – 147.79
Rat Patrol 01 – 140.15
Roy Cambell – 140.85
Raiden – 141.80
Drebin – 148.93
Change Camo
To make Snake’s Octocamo return to it’s neutral colors, shake the sixaxis controller.
Cheaper Drebin prices
To lower Drebin’s prices, change the PS3′s system date to Wednesday or Sunday. Also, in Act 5 Drebin’s prices are cut by 50%.
3 ways to reduce Stress, gain Psyche.
1. Sit in a box to reduce stress faster and regain psyche.
2. Go into the shade to reduce stress quicker.
3. Tap X repeatedly during a cutscene to regain psyche.
PMC troops ignore you
Wear Otacon’s or one of the beauty’s face paints to be ignored by PMC soldiers.
Infinite Drebin points
When in Shadow Moses, there will be respawning Dwarf Gekkos. Go to an area where they cannot reach you such as a vent. Continuously shoot at them(preferably with machine gun) to gain DP.
Statue locations
Find the following statues in the corresponding locations. The statues are required to unlock the Solar gun. You must defeat the boss non-lethally. Stand in the sunlight to reload the solar gun.
Frog statue – Act 1: middle east, advent palace garage, on a vehicle.
Octopus statue – Act 2: south america, in the research lab boss room, top right of room during the fight.
Raven statue – Act 3: europe, on the top floor of the boss fight.
Wolf statue – Act 4: shadow moses, behind snake’s starting spot of the boss fight.
Mantis statue – Act 5: Outer heaven, near the northern-most door during the fight.
Alternate ending
An alternate ending will play if you are using the Sixaxis controller.
Cut Scene Secrets
Perform the following actions during the specified cut scenes to get the corresponding effects:
Naomi’s Chest – In Act 2, when Snake loses his Psyche after Namoi tells him how long he has, press L1 to look at her chest. This will recharge Snake’s Psyche.
Naomi Upskirt – In Act 2, when Snake drops his cigarette, use the hidden L1 option to look up Naomi’s skirt.
Psycho Mantis’ Ghost – In the first intermission sequence with Beauty and the Beast, after you use the option to look through L1, look to the left to see the ghost of Psycho Mantis.
Sorrow – In the Psycho Mantis intermission sequence, hold down L1. Psycho Mantis disappears and you will hear Sorrow say something. Hold L1 to see Sorrow. Press X to flashback.
Weird person tailing Snake
When tailing the Resistance member look behind Snake, and occasionally you will see a man with a hat and trenchcoat tailing him. If you try to shoot him he will duck away around the corner and disappear.
Shake Rose’s breasts
To make Rose’s breasts move, shake the Sixaxis controller when you speak to her on the codec.
Glowing red eyes
Make both of snake’s eyes glow red by using the solid eye with the Raiden A mask.