From StrategyWiki, the free strategy guide and walkthrough wiki
| Unlockable
| How to Unlock
|
| Emotive ammo (cry)
| Complete game on any difficulty
|
| Emotive ammo (laughter)
| Complete game on any difficulty
|
| Emotive ammo (rage)
| Complete game on any difficulty
|
| Emotive ammo (scream)
| Complete game on any difficulty
|
| Smoke Grenade (blue)
| Complete game on any difficulty
|
| Smoke Grenade (green)
| Complete game on any difficulty
|
| Smoke Grenade (red)
| Complete game on any difficulty
|
| Smoke Grenade (yellow)
| Complete game on any difficulty
|
[edit] Bonus Weapons and Equipment
| Unlockable
| How to Unlock
|
| Bandanna
| Complete the single-player game on any difficulty without killing anyone.
|
| Desert Eagle, Long Barrel
| Obtain the Fox Emblem in the single-player game.
|
| Digital Camera
| Mission Item, can also be found on the Nomad with the mk.ii during an Intermission cutscene.
|
| Patriot Future Assault Weapon
| Obtain the Big Boss Emblem in the single-player game.
|
| Race Gun
| Complete the single-player game on any difficulty.
|
| Scanning Plug S
| Available from Drebin after playing Metal Gear Online for 10 hours using the same profile.
|
| Solar Gun
| Collect the five boss statues by using non-lethal attacks.
|
| Stealth Item
| Complete single-player game without triggering an Alert mode.
|
| Thor 45-70
| Obtain the Foxhound Emblem in the single-player game.
|
| World War I Pistol
| Obtain the Hound Emblem in the single-player game.
|
[edit] Camo and Disguises
| Unlockable
| How to Unlock
|
| Altair
| Obtain the Assassin Emblem in the single-player game
|
| Big Boss FaceCamo
| Earn the Big Boss Emblem in the single-player game
|
| Civilian Disguise
| Available at start of Eastern Europe stage
|
| Combat vests (new)
| Complete the single-player game on any difficulty.
|
| Crying Wolf FaceCamo
| Defeat Crying Wolf using only non-lethal means.
|
| Drebin FaceCamo
| Purchase and keep more than 60 different weapons.
|
| FaceCamo (OctoCamo FaceCamo)
| Defeat Laughing Octopus
|
| Laughing Octopus FaceCamo
| Defeat Laughing Octopus using only non-lethal means.
|
| MGS1 Snake FaceCamo
| Available at beginning of Shadow Moses Island Stage.
|
| Middle East Militia Disguise
| Militia Safe House, Middle East Stage
|
| Otacon FaceCamo
| Shock Otacon using the mk.ii during the intermission scene.
|
| Raging Raven FaceCamo
| Defeat Raging Raven using only non-lethal means.
|
| Raiden FaceCamo A
| Shock Sunny using the mk.ii during the intermission scene.
|
| Raiden FaceCamo B
| Shock Naomi using the mk.ii during the intermission scene.
|
| Roy Campbell FaceCamo
| Shock Colonel Campbell using the mk.ii during the intermission scene.
|
| Screaming Mantis FaceCamo
| Defeat Screaming Mantis using only non-lethal means.
|
| South American Rebel Disguise
| Cove Valley Village, South America Stage
|
| Suit
| Complete the single-player game on any difficulty.
|
| Young Snake FaceCamo
| Available at start of Eastern Europe stage
|
| Young Snake FaceCamo with Bandanna
| Available at start of Eastern Europe stage
|
[edit] Passwords
These passwords can be entered on the Extras screen from the main menu. Items and weapons will be obtained when you load a save file, or, if you start a new game, when you get the Metal Gear Mk. II. IPod songs will be available immediately.
| Password
| Obtains
|
| aottrykmyn
| Altair Costume
|
| dntkkhktmm
| Drebin FaceCamo
|
| jmsotsynrn
| Type 17 Pistol
|
| mekakorkkk
| ck Mk. 23 handgun (SOCOM from MGS1)
|
| thomas
| "Desperate Chase" iPod Song
|
| george
| "Gekko" iPod Song
|
| theodore
| "Midnight Shadow" iPod Song
|
| abraham
| "Mobs Alive" iPod Song
|
| mnsoymsyhn
| "Mosin Nagant"
|
| mgo2play
| "Subsistence Action" iPod Song
|
| 1aytmmymhk
| 1911 Pistol
|
| pkhhnwhsjt
| Patriot Future Assault Weapon
|
| skynytktjp
| Scanning Plug S
|
| deskyhstyl
| Desert Eagle, Long Barrel
|
| tshsniammr
| Thor .45-70
|
[edit] Secrets
There are many secrets to discover in MGS4, these are only a few, so feel free to add on any that you find!
- Crop Circle: While tracking Naomi in Act 2, there is a path that leads to a small field, which contains a Crop Circle!
- Water Treatment: While tracking Naomi in Act 2, there is a path that leads to a small concrete platform, where a PMC Soldier is urinating into the river.
- Tailing Snake: In Act 3, while trailing the Resistance Member, you may see a figure following Snake. These are the Dwarf Gekko that you see in the cutscene after the Resistance Member leads you to the church.
- Sunny's PSP: In Act 2 mission briefing you can see Sunny playing her PSP, the game she plays is Penguin Adventure, the first game of Hideo kojima.
