: : : : : Metal Gear Solid 4: Guns of the Patriots

Metal Gear Solid 4: Guns of the Patriots Cheats

Metal Gear Solid 4: Guns of the Patriots cheats, Passwords, Trophys, Easter Eggs, Unlockables, Tips, and Codes for PS3.


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Extra Passwords
Successfully complete the game in Single Player mode to unlock the "Password" option in the "Extras" menu. Then, enter one of the following passwords to unlock the corresponding bonus when another game is started or a saved game is resumed.

Note: The iPod songs will become available when the Mk II can first be used.
Note2: Please also note the case in which the passwords are written
PasswordWhat it Unlocks
thomasUnlocks 'Desperate Chase' iPod song
georgeUnlocks 'Gekko' iPod song
theodoreUnlocks 'Midnight Shadow' iPod song
abrahamUnlocks 'Mobs Alive' iPod song
mekakorkkkUnlocks Mk. 23 handgun (SOCOM from MGS1)
mnsoymsyhnUnlocks Mosin Nagant Rifle
deskyhstylUnlocks the Desert Eagle Long Barrel
1aytmmymhkUnlocks 1911 Custom handgun
jmsotsynrnUnlocks the Type 17 Pistol
aottrykmynUnlocks Snakes Altair Disguise
dntkkhktmmunlocks drebin facecamo
pkhhnwhsjtUnlocks the Patriot ( Gun ).
tshsniammrUnlocks the Thor .45
skynytktjpUnlocks Scanning Plug S
mgo2playUnlocks "Subsistence Action" iPod Song


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Complete the outlined tasks, and earn the Trophies.
TrophyHow to unlock
Drum Can Addict (Bronze)Knocked an enemy soldier flying using a Drum Can.
Emotion Control (Bronze)Controlled an enemy soldier's emotions using an Emotive Magazine.
Hands Up! (Bronze)Held an enemy soldier at gunpoint and performed a body check.
Hurt me more! (Bronze)Shocked an enemy soldier using Mk. II/III.
Overhead view -- just like old times... (Bronze)Used overhead view on Shadow Moses Island.
That Tune Is His Mind Control Music (Bronze)Played Oishii Two-han Seikatsu and made one of the BB Corps dance.
You enjoy all the killing, that's why. (Bronze)Killed many enemies in one area, and vomited.
Are you an Otaku too? (Silver)Viewed all model posters.
Can you feel my power now!!!? (Silver)Took control of an enemy soldier's body using the Mantis Doll or Sorrow Doll.
Divine Wind (Silver)Caused a "divine wind" using the Tanegashima.
FaceCamo Addict (Silver)Obtained 10 or more types of FaceCamo (excluding types obtained via password).
Ghost Photography Addict (Silver)Snapped at least 5 shots of ghosts on Shadow Moses Island.
I Just Don't Fear Death (Silver)Ended ALERT status while wearing the Corpse Camo.
SUNLIGHT! (Silver)Obtained the Solar Gun.
You're pretty good. (Silver)Got kissed by Ocelot during the final battle.
Flashback Mania (Gold)Viewed all flashbacks.
I am THE expert on weapons (Gold)Obtained all weapons (excluding weapons obtained via password).
Sounds of the Battlefield (Gold)Obtained all iPod® tracks (excluding tracks obtained via password).
The Legendary Hero (Gold)Obtained all trophies.
Secret Trophies-
Crying Wolf Doll (Bronze)Defeated Crying Wolf by non-lethal means, and obtained the Crying Wolf Doll.
Frog Soldier Doll (Bronze)Escaped the Haven Troopers in the Middle East by non-lethal means, and obtained the Frog Soldier Doll.
Handle with Caution (Bronze)Broke off the most important part of a statue.
Laughing Octopus Doll (Bronze)Defeated Laughing Octopus by non-lethal means, and obtained the Laughing Octopus Doll.
Liquid Sun (Bronze)Cleared Act 1 (Middle East).
LIQUID! (Bronze)Piloted Metal Gear REX and screamed at your enemy.
Old Sun (Bronze)Cleared Act 5 (Outer Haven).
Raging Raven Doll (Bronze)Defeated Raging Raven by non-lethal means, and obtained the Raging Raven Doll.
Screaming Mantis Doll (Bronze)Defeated Screaming Mantis by non-lethal means, and obtained the Screaming Mantis Doll.
Solid Sun (Bronze)Cleared Act 2 (South America).
Third Sun (Bronze)Cleared Act 3 (Eastern Europe).
Twin Suns (Bronze)Cleared Act 4 (Shadow Moses).
Crop Circle (Silver)Found a crop circle and heard a mysterious voice.
Infinite ammo. (Gold)Obtained the Bandana.
Stealth Camouflage (Gold)Obtained the Stealth Camouflage.


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Flashback Sequences
During the course of the game, entering certain areas will start an audio flashback. If you listen to it completely you will be rewarded with 1,000 Drebin Points.
UnlockableHow to unlock
Colonel Acting Strangely (MGS2)Find the crop circle near the river while tracking Naomi after the Laughing Octopus fight (Act 2)
End of the Hind Confrontation (MGS)Find the Hind (Act 4)
Hind D Speech (MGS)Walk onto the middle of the Helipad (Act 4)
Master Miller's introduction (MGS)Enter through either of the vents instead of the door (Act 4)
Meryl's "Where I can see you" speech (MGS)Stand near the Tank Hangar's door (Act 4)
Cyborg Ninja fighting Genome Soldiers (MGS)Stand in the decontamination room before the hallway to Otacon's office (Act 4)
Grey Fox's introduction (MGS)Inside Otacon's lab (Act 4)
Meryl telling Snake to continue without her (MGS)Stand in the filled-in trench leading up to the Comm Towers (Act 4)
Beginning of the Hind confrontation (MGS)Climb as far as you can up the Comm Tower nearest where you enter and walk around (Act 4)
Otacon's "What are you fighting for?" speech (MGS)In front of the other Comm Tower, facing the exit (Act 4)
Raven's final speech (MGS)Stand near the door leading back to the room where you fought Vulcan Raven (Act 4)
Infiltration speech (MGS)In Shadow Moses, near the elevator (Act 4)
Liquid Snake being shot down (MGS)Return to the crashed Hind chopper after the Crying Wolf fight (Act 4)
Snake will say "Just like old times"Aim the Mk.23 SOCOM while at Shadow Moses (Act 4)
Snake will say "Just like old times"Move the camera view directly overhead and move around (Act 4)
Liquid saying "You enjoy all the killing. That's why."In Act 2- South America, Confinment Facility. Follow the road and go to the small tower on the side. You may not hear it because most likely there will be a helicopter that drowns it out.
Deep ThroatWhen leaving the tank hanger, entering the canyon, go to the left behind the large boulders. You will hear DeepThroat warn Snake about the mines in that area.
Unlock The Solar Gun
To unlock the Solar Gun you will need to find 5 statues throughout each of the Acts. To get the models to appear you will need to defeat the relavant bosses/enemies in a non-lethal Manor.
UnlockableHow to unlock
FrogIn Act 1 (Middle East) Advent Palace garage, atop the Nomad vehicle.
OctopusIn Act 2 (South America) In the Research Lab Boss room, upper right room.
RavenIn Act 3 (Europe) On the top floor of the human phase of the Boss fight.
WolfIn Act 4 (Shadow Moses) Behind Snake's starting spot in the human phase of the Boss fight.
MantisIn Act 5 (Outer Heaven) Near the northern most door during the human phase of the fight.
Unlockable Ammo
You unlock new Ammo for your weapons by doing the following. Press Triangle whilst having a compatible weapon selected to change the ammo used.
UnlockableHow to unlock
Emotive CryComplete the game once. This can be bought from Drebin
Emotive LaughterComplete the game once. This can be bought from Drebin
Emotive Rage Complete the game once. This can be bought from Drebin
Emotive ScreamComplete the game once. This can be bought from Drebin
Smoke Grenade Blue Complete the game once. This can be bought from Drebin
Smoke Grenade GreenComplete the game once. This can be bought from Drebin
Smoke Grenade RedComplete the game once. This can be bought from Drebin
Smoke Grenade YellowComplete the game once. This can be bought from Drebin
Unlockable Costumes
You can unlock various costumes in the game by accomplishing various tasks.
UnlockableHow to unlock
Snake SuitClear the game once
Altair Costume (Assassins Creed)Obtain the Assassins Emblem
Civilian DisguiseStart the Eastern Europe level (Act 3)
Militia DisguiseYou can find this disguise in the Militia Safe House in the Middle East (Act 1)
Rebel DisguiseYou can find this disguise in the Cove Valley Village in South America (Act 2)
Stealth SuitComplete the game with No Alerts
Stealth Suit (Alternative)Buy from Drebin for 5,000,000 Drebin Points (2,500,000 during Act 5, and 4,000,000 on Sundays/Thursdays)
Corpse CamoGet at least 41 continues in a single playthrough to unlock this camo suit.
Unlockable Face Camos
To unlock the face camos simply follow the following instructions. This can be done on any difficulty unless stated otherwise.
UnlockableHow to unlock
Big BossGet the Big Boss Emblem. When you wear this mask, it causes enemies near you to cower in fear and/or run away screaming.
Crying WolfDefeat the Crying Wolf (Human Form) by Non-Lethal Means
DrebinAcquire and keep over 60 types of Weapons
FaceCamoDefeat Battle Beauty Laughing Octopus. This mask functions like the Octocamo suit, but just on your head.
Laughing OctopusDefeat the Laughing Octopus (Human Form) by Non-Lethal Means
MGS Solid SnakeStart the Shadow Moses level (Act 4)
OtaconShock Otacon with Metal Gear Mk. II during interactive mission brief.
Raging RavenDefeat the Raging Raven (Human Form) by Non-Lethal Means
Raiden AShock Sunny with Metal Gear Mk. II during interactive mission brief.
Raiden BShock Naomi with Metal Gear Mk. II during interactive mission brief.
Roy CampbellShock Campbell with Metal Gear Mk. II during interactive mission brief.
Screaming MantisDefeat the Screaming Mantis (Human Form) by Non-Lethal Means
Young SnakeStart the Eastern Europe level (Act 3)
Young Snake with BandanaStart the Eastern Europe level (Act 3)
Unlockable iPod Songs
Each of the songs give secret effects when played during the game
UnlockableHow to unlock
Beyond the BoundsIn Act 4 (Shadow Moses), Tank Hangar, after power is restored, return to the upper catwalk, and explore all the rooms. This song increases stun damage done by Snake from nonlethal weapons.
Big BossGet the Big Boss Emblem. This song increases stun damage and Snake's accuracy.
BiohazardIn Act 3 (Europe), Midtown, holdup a resistance soldier and body search him. This song causes soldiers held by Snake to scream.
Destiny's CallReceived randomly from an allied or neutral militia or rebel soldier after Snake gives them a healing item. This song causes soldiers held by Snake to become enraged.
Flowing DestinyIn Act 4 (Shadow Moses), Canyon, before leaving the canyon area, examine the rocky walls for a hole hiding the song. This song causes soldiers held by Snake to weep.
The FuryIn Act 2 (South America), Cove Valley Village, search inside the fireravaged house. This song causes soldiers held by Snake to become enraged.
MGS 4 Love Theme/ActionReceived randomly from an allied or neutral militia or rebel soldier after Snake gives them a healing item. This song causes soldiers held by Snake to weep.
Opening Old L.A. 2040In Act 4 (Shadow Moses), Nuclear Warhead Storage B2, input "78925" into Otacon's lab computer. This song increases Snake's accuracy.
Policenaughts EndingIn Act 4 (Shadow Moses), Nuclear Warhead Storage B2, enter "13462" into Otacon's lab computer. This song causes soldiers held by Snake to fall asleep when touched.
Rock MeIn Act 2 (South America), Confinement Facility, search the island in the southeastern quadrant. This song increases the amount of life recovered from items and other means.
SailorIn Act 2 (South America), Vista Mansion, look between the east wall and a cargo container. This song increases the amount of life recovered from items and other means.
Show TimeReceived randomly from an allied or neutral militia or rebel soldier after Snake gives them a healing item. This song causes soldiers held by Snake to scream.
Snake EaterGet all 40 game clear Emblems. This song increases the amount of life recovered from items and other means.
SubsistencePlay one game of Metal Gear Online, starting the match with at least two players. This song increases Snake's accuracy.
Boktai 2 ThemeDuring the Act 2 mission briefing, go upstairs in the Nomad.
Bon DanceFound in Act 2: South America - Marketplace
Inorino UtaDuring the Act 1 mission briefing, go upstairs with the Mk II.
Level 3 WarningFound in Act 1: Middle East - Advent Palace
Lunar Knights Main ThemeDuring the Act 4 mission briefing, go upstairs in the Nomad.
Metal Gear 20 Years History pt 2Found in Act 4: Shadow Moses - Warhead Storage Building B2.
Metal Gear 20 Years History pt 3Found in Act 2: South America at the South America Confinement Facility in the room with beds inside the house.
Metal Gear Solid Main Theme (The Document Remix)Found in Act 5: Outer Heaven under the hatch to the left at the start of the area.
On AlertFound in Act 3: Europe - Midtown N Sector
One Night in Neo Kobe CityFound in Act 3: Europe - Midtown; hold-up a PMC soldier.
Shin Bokura No Taiyou ThemeDuring the Act 3 mission briefing, go upstairs in the Nomad.
Test Subject's BurnsFound in Act 3: Europe - Midtown S Sector
The Essence Of VinceFound in Act 3: Europe - Echo's Beacon
Theme Of Solid SnakeFound in Act 1: Middle East - Millennium Park
Theme Of TaraFound in Act 1: Middle East - Militia Safehouse just before seeing the unmanned flying-bomber on the table
Warhead StorageFound in Act 4: Shadow Moses - Tank Hanger, upper floor ventilation shaft.
Yell (Dead Cell)Found in Act 4: Shadow Moses - Casting Facility North.
Zanzibarland BreezeFound in Act 1: Middle East - Urban Ruins before the intermission sequences.
Unlockable Items
You can unlock items by doing the following.
UnlockableHow to unlock
BandannaSuccessfully complete the game in Single Player mode without killing anyone, including Bosses. Alternately, purchase it from Drebin for 5,000,000 DP after starting another game session after completing the game. This item gives you infinite ammunition.
Digital CameraIt is found in the Nomad vehicle during the mission intermission. Note: You can unlock a special photo by waiting until Stage 4 to get the camera.
Scanning Plug SLog more than ten hours of online play time on the same profile as your single player game to unlock it for purchase from Drebin.
Stealth ItemSuccessfully complete the game in Single Player mode without instigating an alert. Note: You can trigger a caution.
Unlockable Modes
To unlock the game modes, do the following...
UnlockableHow to unlock
The Boss Extreme modeSuccessfully complete the game in Single Player mode to unlock The Boss Extreme difficulty
Unlockable Vests
To unlock the following Vests, simply do the following during the game.
UnlockableHow to unlock
Blue VestComplete the game once
Red VestComplete the game once
Orange VestComplete the game once
Green VestComplete the game once
Tan VestComplete the game once
Black VestComplete the game
Unlockable Weapons
You can unlock various weapons by completing various modes and getting various emblems.
UnlockableHow to unlock
Desert Eagle Long BarrelGet the Fox Emblem.
Patriot Future Assault Weapon Successfully complete the game with a "Big Boss" rank. This weapon has infinite ammunition.
Race Gun pistolSuccessfully complete the game in Single Player mode.
Solar GunCollect the five statues (the four Battle Beauties and Frog Soldier/Haven Troopers) with non-lethal means on their respective idols.
Thor 45-70Get the Fox Hound Emblem.
World War I pistolGet the Hound Emblem.
Desert EagleEither Buy it in Act 2 for $5000 or get it from Dwarf Gecko


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A bit of help for fighting the Raging Raven
Ok, it takes place in an eastern European tower, and the battle against this airborne boss can be quite lengthy. You'll need to find a position that offers cover and the opportunity to attack, so immediately head up to the very top of the stairwell. Don't venture out onto the walkway at the summit, instead wedge yourself into the left hand corner of the doorway. This way you'll be protected from the missiles fired at you, and you'll be able to duck out of cover to fire SAM missiles at Raven's support units. Take these out first (they fly circuits of the tower, so train your sights at one point from cover and let the support units fly into the point of your sight). After you've taken care of the support units, focus on Raven.

She'll often dodge rockets, so you might be better off with a heavy machine gun. Stay covered and pick her off little by little, then she'll shed her suit and you can quickly finish the fight for good downstairs.

Good luck!
A bit of help with crying wolf
If you go to the coms tower furthest away from your starting position, go up the stairs on to the second floor and go all the way round to where the platform is broken off. Use a sniper rifle to shoot Wolf, she should come in to sight every once in a while, if not shoot a few Frogs so you are on caution. But some Frogs might come up the ladder so put a few claymore mines down so you dont have to worry about who comes up that ladder.
A little bit of help with Crying Wolf
Each encounter with the B&B squad gets progressively trickier. Crying Wolf is particularly touch because the battle against her takes place over a large area, with many buildings and a constant stream of Haven Troopers to fight. Wolf prowls the snowy wastes, stopping every so often to survey the area. As with Raven, your best bet is high ground, so clamber up one of the towers, switch on your night vision (keep an eye on the battery - without it you're snowblind) and watch and wait. You'll hear her stalking in the snow beneath you. When she stops it's your chance to snipe her as she peeks out from her suit. Be careful though - if she sees you, her attack is devastating - throwing you from your spot into the Haven Troopers range. Four to five sniper rounds should do it.

Good luck!
A little bit of help with Screaming Mantis
First up you'll need to use your syringe to regain your senses, and once you're up and running get to the perimeter of the room where the sinister puppets are less troublesome. Ignore these, but keep an eye out for Screaming Mantis' scythes - dodge these and keep moving around the outside of the room; if Meryl is sent after you, use CQC to knock her cold. Use one of your assault rifles to attack Mantis and Sorrow, the two puppets Screaming Mantis is holding (fit a sight to your rifle if you haven't already) until she drops them, then pick the puppets up. Then use the Mantis puppet to posses Screaming Mantis, shaking the Sixaxis to drain all of her energy while she's under your control in order to finally defeat her!

Good luck.
An easy way to find Laughing Octopus!
During the boss battle with Laughing Octopus, equip the Solid Eye System in Night Vision mode. This will show any heat sources in white, including Snake, the hanging lights, and also Laughing Octopus.
Beauty And The Beast magazine models
You can buy a magazine with pictures of the models that the Beauty And The Beast unit were based on from Drebin.
Beauty And The Beast preview
In Act 1, when in the underground hanger/cave, you can also use the Mk II to listen to the wounded PMC soldier's conversation. He will talk about the Beauty And The Beast group before you actually meet them.
Aswell as by just walking yourself in, but when you use MK II and it's stealth mode, you might not disturb the conversation, as it sometimes might happen when the other guy did notice you coming in, and then the conversation will be cancelled.
Bypassing Gekkos
Shoot five tranquilizer rounds into the legs of a Gekko. It will collapse and thrash around on the floor. You can walk past without being spotted while that is happening.


Shoot one Tranq. round in each of the legs, and it will also fall down.
Cheaper Drebin prices
Set the PS3 system date to a Wednesday or Sunday, and Drebin will have cheaper prices. Additionally, all of Drebin's prices are cut by 50% during Act 5.
Codec Frequencies
Otacon: 140.85 from before act 1
Rosemary: 147.70 she 1st contacts you in the 2nd act
Colonel: 140.80 same time as Rosemary's 1st contact
Raiden: 141.80 during the 2nd act
Meryl: 140.15 at the end of the 1st act
Drebin: 148.93 gives you background after Laughing Beauty fight
Crawl after roll
When you're running and perform a roll, simply hold the roll button longer and you'll finish laying on your front in the crawl position.
Easy Vamp Battle
If Vamp is proving difficult on a second playthrough, simply use the Solar Gun on him. It can defeat him with ease on any difficulty level.
Emblems (the hard ones)
Assassin's: Successfully complete the game in Single Player mode with killing more than 50 enemies with the knife, having over 50 CQC holds, and getting discovered less than 25 times.

Big Boss: Successfully complete the game in Single Player mode on the hardest difficulty using no continues, instigating no alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time of less than 5 hours.

Fox: Successfully complete the game in Single Player mode on the Naked Normal or higher difficulty using no continues, instigating no more than five alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time of less than 6 hours.

Fox Hound: Successfully complete the game in Single Player mode on the Big Boss Hard or higher difficulty using no continues, instigating no more than three alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time less than 5 hours and 30 minutes.

Hound: Successfully complete the game in Single Player mode on the Naked Normal or higher difficulty using no continues, instigating no more than three alerts, killing no enemies (including Bosses), using no life recovery items, using no stealth suit or bandanna special items (can possess, but not activate), and with a completion time less than 6 hours and 30 minutes.
Extra Batteries
Whilst on the NOMAD during the mission briefings, you can find batteries whilst controlling the Metal Gear MKII/MKIII. You can find one in the Mission Brifings for Act 1 - Act 4.
Faster iPod navigation
Instead of rotating the Right Analog-stick to control the iPod, use Triangle, Square, Circle, and X.
FROG soldier reaction to searches
Hold up a FROG soldier, and body search them. When you would normally ball crush a male prisoner, they will say "You men are all the same", "You're disgusting!", or "Ugh" and kick you.

When you search a FROG soldier when they have no items, she will giggle as if ticklish.

When you search a FROG soldier and touch her chest, sometime she will moan or say "You're pretty good at this".
Getting no damage easily in "Crying Wolf" boss battle
*you must use a sniper rifle for this to work*
when you start the fight look to your right and you'll see a 6-8 wheel military ATV. if you crawl under it you can watch for Crying Wolf to pop out of her shell and aim at you. that's when you snipe her. the frogs don't get close enough to shoot you very often, and if they do, they have to crouch first, so it gives you the advantage. if Crying Wolf doesn't come for a little while, crawl half way out so some of you is exposed. she'll howl if she's on her way. depending on your rifle, it may only take you 5-10 hits. and you won't take any damage!
How to alternatley beat Liquid Ocelot on boss extreme
This is the tip I found when I finally got to Liquid Ocelot on the boss extreme mode and this tip also helps with people who are not good at mashing buttons and can't do numerous combos to beat him. I used a similar stratagey on lower difficulties but when I got to boss extreme it didnt work because he got more aggressive so I had to tweak my old way until I came up with this new way and here it is....
Phase 1: You start by immediatley blocking and trying to move in close to Liquid Ocelot to get him to start his 4 punch combo when he starts it move back slowly while still blocking as he throws his final elbow press up and R1 directly after he goes "ahhh" and you will get him in a CQC choke and punch once he gets up block immediatley block because he will most likely do his rush attack that will break your guard and take off minimal life but thats okay just reblock and try to get close to him again to him to restart the 4 punch combo again and repeat what I just stated above until you get to phase 2 now this may seem like it could take forever but trust me once you get the timing down it really doesn't take that long. Note: you can sometimes do extra punches while choking by pushing R1 or triangle, maybe its both in unison I'am not sure which but it does work to help take extra health off him everytime it does happen. It does work for all phases.
Phase 2: Start by moving in to him right away and get your free CQC as he pauses a few seconds between phases. Once he gets up he 95% of the time goes directly for the "take this" punch once he starts the animation dash either way and get him right back into another CQC. Occasionlly he trys to dash in and regular punch you thats okay just block and try to keep backing up around the sub top to bate him into another "take this" punch and just CQC him again until you get to phase 3.
Phase 3: Start like last phase getting your free CQC once he gets up he will say "take this" and try to do his own CQC on you. To counter this just throw your own CQC almost exactley when he tries to throw his and a brief animation will occur offsetting his CQC attempt and yours bring you back to regular fighting stances were he dashes in and out throwing normal punches and if he gets in to close he will do that retarted headbutt you can't seem to block but thats okay just reblock and keep trying to back up until you get about arms length away throw a CQC and somehow it gets him everytime but make sure its not to far away because snake will whiff at throwing the CQC. Also note he likes to switch back to his own CQC form just watch out for when he does and try to do what I stated above. Until stage 4
Phase 4: Its straight forward just keep pressing R1 until he dies.

This is just a stratagey for people who aren't particullary good at doing combos which involves mashing R1 pretty fast which I can't do all that great.
Infinite Drebin Points
First, acquire the drum can. You do this by finding the soldier that is hiding in the can, and using it as a bathroom. After that, go up ahead a few feet, where you will see three crates. When you have gone past them, you will see just two crates. You will also see about three rebel soldiers fighting. One is carrying an RPG and the other two have machine guns. They will die and respawn continuously. You will have a chance to pick up the RPG after the soldier has died three times. Do so because each RPG is worth 6,000 Drebin Points. The important thing is to stay anywhere behind the two crates, otherwise the trick will not work. Going further than the two crates will stop the respawning loop of the soldiers dying. The only way to get the RPG without breaking the respawning loop is to use the Mk II.
Liquid Ocelot kiss
At the third part of the final fight, when Liquid Ocelot grabs Snake by the neck, allow the controller to idle. After some time, Liquid Ocelot will kiss Snake on the cheek.
Militia soldier execution
Sneak through the first part after the opening, and go through the buildings. At the building to the right of where the Stryker shows up, crawl under the rubble, and sometimes You will see a militia soldier get brutally shot after pleading for his life.
photosythesis can kill
Snakes stress level seems to rise in light, and dramaticaly rops when he hits the shade thats why other people have put hiding in a box reduces stress, simply move into the shade and camp
Posing as statues
You can step up on statue pedestals, and press Triangle to assume various poses. With one of the statues, you will grab its crotch. Do this several times, and that part of the statue will break off.
Posing Beauties
After defeating any of the four Beauties, there is a second round where they walk towards you, trying to grab Snake. During this phase, run from them for three minutes, and the screen around you and the Beauty will turn white. Take out the digital camera you obtained from the mission briefings. The Beauty will stop chasing you and do sexy poses for your camera.

Play the "Oishii ChuhanSeikatsu" Japanese pop song on your iPod while fighting a Beauty. She will start dancing. If you aim a camera at her, she will pose.
Crawl around the vents in Shadow Moses to encounter Rats. When they see Snake, "!" will appear above their heads, accompanied with a sound. They will run away. Keep chasing them, and they will repeat the "!" alert. Following the rats is a good way to get in. If you call Otacon after you see the rats, Snake will talk about them and how they helped him before.
Reducing stress
Sit in a box to reduce stress faster.
Replay bonus
Successfully complete the game, and create a cleared saved game file. Start another game session, and encounter Metal Gear II in the first stage to get the Drebin points, weapons, ammunition, items, and special items from your original game.

Research lab boss fight
Two things to beat the boss here without taking damage and dieing
1.Using the tranquilizer rifle under a bed the rifle will knock her down and she will take better damage than the gun...
2.When fighting her in the human form she will dodge your targeted shots 3-4 times before taking the hit target but don't shoot til the 4 targeting..
Reset OctoCamo
Shake the Sixaxis controller to revert the back to the default neutral (black and blue) appearance.
Shake Rose's breasts
When you speak with Rose on the Codec, shake the Sixaxis to make her breasts move.
Shoot from inside a dumpster
There are dumpsters throughout the game which you can use to hide. Move in front of them, and press Triangle when the prompt appears. Once inside, if you have a handgun, The Operator for example, you can hold L1 to lift up the lid of the dumpster and aim your gun from inside.
Snake Is Being Followed In Act 3?
After you leave the park but before the cutscene triggers. After the Resistance member goes down the flight of steps and turns left, go out on to the street and turn right, (might help to equip NV) and go down a little way. The street bends a little to the right, and then bends again. If you turn around to face the way you've come, and then turn around again quickly, you'll see a Figure quickly duck behind one of the corners on the right (I think which one depends how far down the street you are). If you don't move, and equip binos or a zoom lens, you can aim at the figure and examine it. It wears a trenchcoat similar to Snake's, and a fedora hat (I think - you know, the Sam Spade kind). Its face is completely hidden and its figure obscured, so there's no telling who he/she is. If you aim with a scope-equipped weapon, the figure quickly ducks away out of sight, but remains if you use the camera or binos. Even if you have the shot lined up, shooting the figure has no effect. Sadly, contacting Otacon doesn't trigger any conversations.

Seemingly Snake is being tailed...
Some extra DP
To earn some extra DP at Otacons office in shadow moses when he ask's for the code punch in these numbers "14893" and be reward with 100,000 DP.
Switching stances faster
To switch between crawling and crouch-walking (and back) faster, move forward while pressing X. Use this trick to get prone behind cover quickly after crouch-walking past an enemy.
The best weapon for killing things.
Well, as soon as you can, buy the 282A2 50.Calibre Sniper Rifle. This weapon will kill almost everything in one shot, Soldiers, FROG soldiers and also Gekkos(If you get a direct hit on its' head, other it will take three shots), It has the stopping power and damage of an RPG, so it will also do quite a lot of damage to bosses. This is because in real life, it is meant to punch through Vehicles armour. Don't use this weapon if you are trying to be sneaky, as it is VERY loud.
this is just fun not really a cheat persay
I just found this out last night and I did not know this, it maybe is common knowledge among Mgs4 players. You can strap c4 to the backs of militiamen or pmcs and let them walk away then detonate. It helps to have stealth equiped and just sneak up behind them and plant the c4. This tip is really just fun to do its not really helpful but nevertheless I thought I would share anyway
Tornados like you.
If you've got the Tanegashima rifle, you've no doubt noticed how it shoots tornados every now and then, and how it sweeps up a lot of debris in the process, go pick up the debris, it is actually Ammo and items such as rations, this is very good if you are running low on ammo and health.
Vomiting Snake
1. When you get the drum can, you can press x and roll around on its side for a little while until snake gets dizzy and has to exit the drum can in order to vomit.

2. Press start, then go into the camoflauge menu. While in the menu, use the right analog stick and turn it to the left or right. Snake will start to spin slowly, but if you keep spinning snake for a couple of seconds he'll spin faster. At this point leave the menu and get back to playing the game. As soon as you get back to the game snake will automatically vomit.

Easter eggs

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After death messages
After dying, call Rose to hear a conversation about Snake having dreams of being killed or a comment from Snake saying that he feels like he has died once before.
Akina Minami posters
There are two posters of Akina Minami in the Vista mansion. Look at them in first person view, and Snake will say her name and his Psyche gauge will increase.
This works with all the posters you find in the game.
Alternate Rose's shirt
Rose will be wearing a different shirt with the day.
Attacking wolves
In Act 4, kill one of the wolves after you defeat Crying Wolf. The others will attack you. Call Otacon, and he will wince. Call Rose, and she will tell you that animal cruelty is the first sign of criminal behaviour, and says that she will have you psychologically assessed if you continue to kill them.
Control intermission sequences
During an intermission sequence, press D-pad Up to zoom the camera in, then use the Right Analog-stick to pan the camera around. The harder you press Up, the more zoomed in the camera view. Also, some intermission sequences have prompts to see it through Snake's eyes by holding L1 (look for the icon at the top left of the screen) or view flashback images by repeatedly tapping X when a prompt appears (look for the icon at the top right of the screen). You can also pause an intermission sequence by pressing Start.
Control opening sequence
When starting a new game, you are shown two random commercials. You can change the channel by pressing Up and Down to get new commercials. There is also a Hideo 1 and Hideo 2 channel, which are like Video 1 and 2.
Dancing Sunny
Play the "Oishii ChuhanSeikatsu" Japanese pop song on Snake's iPod. During that song, press Start to see Sunny dancing at the bottom left corner.
Glowing eyes
Use the Solid Eye with the Raiden A mask to make Snake's eyes glow.
Hidden development team autographs
While tracking Naomi, get to where there is a PMC soldier standing next to a claymore. Move northeast from there to find a metal plate on the ground with signatures and handprints from the game's developers. Note: Lay down on it to get the handprint design for your camouflage. Register it to memory, and you can use it whenever desired.
Hideo Kojima references
After defeating Screaming Mantis and immediately after Psycho Mantis vibrates your controller, keep pressing X to see Hideo Kojima.

If you prolong the Psycho Mantis fight long enough, the game will show the opening screen, except the word "Kojima" will replace "Konami". The game will then resume the Psycho Mantis fight.

Press L1 to examine the .50 Cal Anti-Material Sniper Rifle to see "Recommended by Hideo Kojima."

When Snake hides from the two Irvings next to the box of watermelons, the box reads "No Place For Hideo."

You can see a ghost image of Hideo Kojima in Otacon's lab using the camera. It is between Policenauts and the poster that from a distance reads "Final Fantasy VI".

On the computer, the term "Video 2" is called "Hideo 2".
Increase psyche
Sometimes, during cutscenes, Snake will do something, which will reduce his psyche. For example:

To prevent this, just tap X during the action, and the psyche bar will not fall.
Intermission sequence extras
During the following intermission sequences, press L1 to see secret events:

Laughing Octopus: Laughing Octopus quickly leaps away outside the window during one of the L1 sequences when you first meet Naomi.

Naomi's chest: In Act 2, after Snake loses his Psyche when Namoi tells him how long he has, press L1 to look at her chest and recharge Snake's Psyche.

Naomi upskirt: In Act 2, when Snake's talking to Naomi and drops his cigarette, use the hidden L1 option to look up her skirt.

Psycho Mantis' ghost: During the first intermission sequence with Beauty and the Beast, after using the option to look through L1, look to the left to see the ghost of Psycho Mantis.

Sorrow: During the Psycho Mantis intermission sequence, keep L1 held. When Psycho Mantis disappears, you will hear Sorrow say something. Hold L1 (even though you are not prompted), and you will see Sorrow. Press X to start a flashback.
Johnny/Akibo Can't Hold It
During the event when you're attacked with Meryl and her team, stick with Akibo to receive ammo from him, and follow him downstairs to the final balcony. When lots of FROG appear, instead of rushing ahead stick with the team to see Akibo relieve himself...this is also referenced in the proceeding cutscenes
Lets Go Ghostbusters!
While in Act 4(Shadow Moses) There are ghosts around the outside and inside the base for you to snap with the camera. Hideo Kojimas ghost is availble to snap if you go to Otacon's Office and look above the Policenauts poster, he'll appear there.
Listening to radio during briefings
During the mission briefings, touch the the radio on the table upstairs with the Mk II, and it will play music.

By switching the radio on and off in Act 4, you will get different songs, including a remixed version of the "Love Theme" from Super Smash Bros. Brawl and the ending theme from Policenauts.
Lost reference
When the game first begins, the channels on the television are numbered 15, 16, 23, and 42, which are part of the number sequence from the television show Lost.
Metal Gear Solid 2 reference
Call Rosemary with a ration equipped to see a reference to a sequence that happened in Metal Gear Solid 2, when Raiden calls Snake on the Codec with a ration equipped and comments about Rose's cooking.
Metal Gear Solid 3 reference
When Drebin and Little Grey jump off of the Stryker, they will land in Naked Snake's pose from Metal Gear Solid 3, when he first arrives for the Operation Virtuous mission.

Equip the Patriot gun to hear music from Metal Gear Solid 3: Snake Eater.

Press L1 to view the description for the Mosin-Nagant. It mentions The End and his sniper duel with Big Boss.
Metal Gear Solid 3 Reference in Act 3
After trailing the Resistance member to get to Big Mama, Snake will grab the member in a choke hold and hold him hostage to get in. As the other Resistance members are asking each other if the man is Snake, a L1 icon appears in the corner. Press L1 and look to the left. You will see a picture of Big Boss in the 60's, along with some other characters from Metal Gear Solid 3.
Metal Gear Solid references
During the Act 1 FROG attack sequence, attack Meryl. She will say the same things she said when you attacked her in Metal Gear Solid.

You fight Crying Wolf in the same area you fought Sniper Wolf.

You can find the Hind D still in the Snowfield where you fight Crying Wolf.

During the Mantis fight, switch your controller ports when your television switches to "Hideo 2". Otacon will come on the Codec and notify you that the trick does not work twice. You will also get a suggestion about destroying the bust.

When you die in Act 4, the "Game Over" music from the first Metal Gear Solid will play.
Metal Gear Solid series references
At the very beginning of Act 1 when Sunny's cooking eggs, she says "Only two eggs? Solidus must've taken the day off."

Look at the two puppets dangling from Screaming Mantis. The two puppets appear to be Psycho Mantis and The Sorrow from previous Metal Gear Solid games.

When Snake and Naomi talk about war changing and how it used to be "just a game", all of the Metal Gear Solid titles appear in an indexed list. After MGS4, there are a few boxes titled "In Production."

When you first enter Big Mama's hideout and the guards start talking about Snake, press L1 to see posters from Metal Gear Solid, Metal Gear Solid 2, Metal Gear Solid 3, and Metal Gear Solid: Portable Ops.

In the Nomad briefing missions, take control of the Mk II, and go to the right of the helicopter. There are three separately caged chickens, each with its own label: "Solid", "Liquid", and "Solidus". This is a reference to the three Big Boss clones.

The rubber duck in the upper gantry of the Nomad can also be found in Capture The Flag mode in Metal Gear Online; in the GA-KO camouflage in Metal Gear Solid 3; and floating in the flooded Shell Core in Metal Gear Solid 2.

Otacon has a model of Rex beside his computer.
Metal Gear Solid VR Missions reference
During a Codec transmission with Campbell, he will talk about the training PMC soldier's went through. Snake says similar to "...better than those VR missions".
Metal Gear Solid: The Twin Snakes
If you stare at Meryl's breasts, she will blush similarly to how she did in Metal Gear Solid: The Twin Snakes.
Naomi's cleavage
When Naomi is in the Nomad and on the computer talking, use the Mk II to look at Otacon's computer. His webcam is focused on Naomi's cleavage.
No smoking sign
Whenever Snake is smoking there is always a no smoking sign behind him.
Otacon comments
Call Otacon a few times in Shadow Moses at the part where Snake originally fought Vulcan Raven in the tank (and is now where two sleeping Geckos are found). Otacon will say that "Snake is the craziest bad ass who ever lived."
PlayStation References
In the Act 1 briefing, there is a PS3 on the second floor of the plane.

During the Act 1 briefing, go upstairs on the Nomad to see Sunny unpacking her PS3 and PSP.

In the Act 2 briefing, there is a PlayStation 3 on the table.

After you defat Crying Wolf in Act 4, Otacon will call you as you enter that building and tell you to change discs. He then catches himself and starts talking about Blu-Ray and the PlayStation 3.

When you send out the Mk 2, look over Snake's shoulder by tilting the camera. He is using a PlayStation 3 controller to control it.

If you use a Sixaxis controller against Psycho Mantis he says, "What? No vibration!" and the flashbacks show the Sixaxis.
Snake gets layed
When you are fighting the beauty of Laughing octopus if you lay on the bed and roll over onto your back, the beaty will pounce on snake and appear to be kissing his neck. Follow the onscreen promts to get her off.
Snake Is A Puppet.
Onwards from the point of meeting the B&B unti in act one.
Whenever you die, Snake will have puppet strings attached to him.
Snatchers reference
The suit Snake wears in Act 3 is a homage to Gillian Seed, from Snatchers.

The "Dr. Madnar" mentioned in Act 3 is a reference to a scientist from Snatchers. The Scientist "Dr. Madnar" is the scientist responsible for the original Metal Gear (NES)
Star Wars reference
In Shadow Moses when Snake is about to get on the lift to fight Vamp, watch as the camera circles around the lift area to see a Darth Vader helmet on the floor.

In the Act 5 briefing, while Mei Ling is explaining the situation to everyone she says something about it being an impenetrable fortress or something similar. Snake then says, "He has his very own Death Star."
Sunny Smokes!?
in The mission briefing of Act 2 Go up the stairs in the Mg Mk. II when Sunny is making the eggs she has a packet of smokes in her poket!
Tangeshima Tornado
There is a reason why the Tangeshima rifle is priced at 1,000,000 DP, Every third time you fire it outside, it'll conjure up a Huge tornado for you to destroy your enemies with. Wait until Act 5 to buy the Rifle for a Cheap price of 500,000 DP.
The Naked Gun reference
Drebin sells laundered guns, called "Naked Guns". Drebin's name is a reference to Frank Drebin from The Naked Gun movies.
When tracking Naomi in Act 2, look to the right when crossing the river to see a guard relieving himself.

Follow the resistance member in Act 3 to see him urinating in the fountain in the small park.

In the central park during Act 3, there is a statue that Snake can interact and imitate. Stay in that pose until a resistance member appears, and he will urinate on you.
Using a playboy magazine for your own enjoyment
Playboy merely is a way to distract enemies , but can be used to restore psyche in a rapid way hold L1 and R1 as normal, howeverrather than relesing these to place it onto the ground press 'triangle' to view it , also 'circle' will allow you to change pages.
View an alternate channel on the NOMAD (During Mission Breifings)
During the briefings on the plane, use the MK.II to "shock" a remote control on a small coffee table near the screen Campbell shows up on. It will then display pictures of girls in swimsuits on the T.V. screen where Campbell usually shows up.
View motion capture actor
When a character is first introduced, press R2 to view that character's motion capture actor instead of his or her voice actor.
Vomiting Snake
If you kill a large enough number of enemies in a conflict zone, you will hear Liquid from Metal Gear Solid say "You enjoy all the killing, that's why!", and Snake will vomit. Note: You can delay the vomiting by hugging the wall. The next time you kill someone, however, it will happen again until you finally vomit.
Zone Of The Enders reference
When you look at the briefing scene, Otacon's computer desktop picture is the main character from Zone Of The Enders, another game directed by Hideo Kojima.