- Super Hybrid weapons
Get five Silver trophies to unlock the Super Hybrid weapons.

- Metal Gear Solid series references
In Twin Falls, enter the tunnel, and get inside a subway car. Destroy the pods inside, and some will have a Moai head from Easter Island. These heads were also hidden throughout various Metal Gear Solid games.


In Co-op mode, zoom in on a prototype ammo kit on the ground. The phrase 'MGS4P4WNS' can be seen on the exterior of the kit.

- Completion bonuses
Successfully complete Campaign mode to unlock Arcade mode; level concept art; chapter concept art; vehicle and weapon concept art; 'Depth Of Field' option (more colorful view); 'Motion Blur' option (blurry view); and 'Screen Tint' option (black, white, yellow, and blue only view).

- Easter Egg in Garfield Park
You can see an Easter Egg under the broken off bridge. Walk out on the single beam in the middle, then turn around, and look to the bottom left to find it.

- Superhuman mode
Successfully complete the game on the Difficult difficulty to unlock the Superhuman difficulty.

- Unlockables
Reach the indicated level in Co-op mode to unlock the corresponding Berserk, gear, or weapon. Notice: You must have sufficient Grey Tech to purchase the unlocked item.


Medic items

Air Fuel Grenades	Level 12
Bio-amp Scope	Level 22
Phoenix Ash (Berserk)	Level 12
Ring of Life (Berserk)	Level 1
Kinetic Gloves	Level 6
Phoenix (weapon)	Level 1
HE .44 Magnum (weapon)	Level 18
Psychokinetic Helmet	Level 30
High Density Bioplasm Chamber	Level 8
Chloroform (Berserk)	Level 4
M5A2 Carbine (weapon)	Level 2
Bioplasm Tracking Tech	Level 14
V7 Splicer (weapon)	Level 28
Assault Pack	Level 16
Leech Barrel	Level 26
Rossmore 238 (weapon)	Level 10
Voltaic Body Armor	Level 24

Soldier items

Auger (weapon)	Level 10
High Capacity Ammo Belt	Level 8
Psychokinetic Helmet	Level 30
Shield area x2 and 55 energy	Level 16
Assault Pack	Level 16
Advanced Timing Motor	Level 14
Kinetic Gloves	Level 6
Precision Scope	Level 26
Air Fuel Grenades (weapon)	Level 12
Rossmore 238 (weapon)	Level 2
Ironheart (Berserk)	Level 1
HVAP Wraith (weapon)	Level 1
Bullseye (weapon)	Level 18
Overload (Berserk)	Level 4
Titanium Barrel	Level 22
Laark (weapon)	Level 28
Backlash (Berserk)	Level 12
Shield area x3 and 75 energy	Level 20
Voltaic Body Armor	Level 24

Special Ops items

Assault Pack	Level 16
Bellock (weapon)	Level 28
Prototype Ammo (Berserk)	Level 1
Psychokinetic Helmet	Level 30
Kinetic Gloves	Level 6
Marksmen (weapon)	Level 1
High Density Ammo Chamber	Level 8
Proximity Mines (weapon, alternate to ammunition)	Level 10
Invisiblity (Berserk)	Level 4
Hawkeye Scope	Level 22
Mag-Propulsion Barrel	Level 26
Bullseye (weapon)	Level 2
Snake Eyes (Berserk)	Level 12
Auger (weapon)	Level 18
L23 Fareye (weapon)	Level 12
Shock Suppressor	Level 14
Voltaic Body Armor	Level 24

- Easy Co-op mode with single player
This trick requires two controllers. To play Co-op mode by yourself without dying and ending the mission, press Begin on the second controller. Choose a class, and begin the mission. Leave that player safe somewhere away from danger, then go and complete the mission with the other player. You will respawn instead of dying and ending your mission. You also can gain levels without going online.

- Mirror levels
Get three Silver trophies to unlock the mirror levels.

- Easy experience
This trick requires two players in Co-op mode. One player must play as Special Ops. Have the non-Special Ops player fire one shot from his or her weapon, and go to a control panel that requires a second player at another panel. While the player is at the panel, the Special Ops player can throw an unlimited amount of ammo boxes at the other player. The Special Ops player will keep getting experience for each box.

- Competitive mode items
Reach the indicated level in Competitive mode to unlock the corresponding item:

Level 9	Hose Attachment, Radio, Backpack 2
Level 6	Ammo Clips, Hip Pack 3, Backpack 6
Level 17	Hybrid 3 Variant Head, Hybrid 3 Variant Body, Heatstack 8
Level 24	Nathan Hale Converted Head, Helmet 3, Helmet 5
Level 5	Backpack1, Heatstack 3, Heatstack 4
Level 25	Decayed Head, Corpse Head
Level 27	Civilian Skin 2, Blue Hat, Steelhead Armor
Level 4	Belt Accessory 1, Belt Accessory 2, Ring Of Life
Level 1	Chimeran Rage, Advanced Radar, Electrostatic Orb Burst, Prototype Ammo
Level 20	Steelhead Head, Steelhead Body, Backpack 8
Level 3	Hybrid, Hybrid 2
Level 23	Steelhead Variant Skin , Backpack 10, Steelhead Variant Head
Level 7	Heatstack 5, Heatstack 7, Hose Tech
Level 11	Backpack 4, Heatstack 9, Arm Accessory
Level 26	Civilian 1, Helmet 2, Helmet 4
Level 16	Warner and Hawthorne Heads, Backpack 3
Level 2	Hip Pack 1, Hip Pack, Adrenaline Boost
Level 19	Nathan Hale Head, Nathan Hale Body, Backpack 7
Level 13	Sentinel Suit, Armor 1, Heat Stack 2
Level 10	Black Ops Suit, Hybrid Variant, Hybrid Variant 2
Level 22	Grenade Vest, Infected Hale Head, Helmet 1
Level 18	Capelli, Armor 2, Heatstack 1
Level 15	Backpack 5, LAARK, Snake Eyes
Level 29	Clank Backpack
Level 14	Hybrid 3 Head, Hybrid 3 Body
Level 21	Chest Armor, Heatstack 10, Backpack 9
Level 8	Chest Armor 1, Overload
Level 12	Black Ops Helmet, Heatstack6, Invisibility
Level 28	Scientist Skin, Scientist Head, Doctor Head, Wrench
Level 30	Leech Skin, Deminsionater

- Trophies
Successfully complete one of the following tasks to get a trophy:

Bronze Trophies
I See You	Kill 50 enemies through solid matter with the Auger in the Single Player Campaign.
They Go 'Boom'	Get 30 kills with the Magnum secondary fire in the Single Player Campaign.
Specter Recon	Acquire 50 pieces of gray tech in the Cooperative Campaign.
Explosives Expert	Get 150 kills with the Carbine 40mm, LAARK, or Frag Grenade in the Single Player Campaign.
Sharpshooter	Get 30 headshots while scoped in with the Fareye or Marksman in the Single Player Campaign.
Rampage!	Kill 40 hybrids in the Single Player Campaign.
Tour of Duty	Finish one mission on each region in the Cooperative Campaign.
Nowhere to Hide	Tag and kill 30 enemies with the Bullseye in the Single Player Campaign.
Pyromaniac	Set 100 enemies of fire with the Bellock Semi-Automic, Air-Fuel Grenade, Spider Grenade, or environmental hazard in the Single Player Campaign.
For Close Encounters	Get 10 one-hit head-shot kills with the Shotgun in the Single Player Campaign.
Berserker	Use every berserk at least once in Online Competitive Multiplayer.
Covert Ops	Acquire 5 pieces of Intel in the Single Player Campaign.
Team Player	Finish 5 missions with a full party of 8 in the Cooperative Campaign.
Up Close and Personal	Get 50 melee kills with any weapon in the Single Player Campaign.
Talk To The Hand	Use the Auger force barrier to stop 150 incoming enemy shots in the single player Campaign.
Specter Initiate	Finish 20 missions in the Cooperative Campaign.
Mind Your Surroundings	Get 50 indirect kills using explosive objects in levels in the Single Player Campaign.
Wrecking Machine	Destroy 40 vehicles in the Single Player Campaign.
Spitting Lead	Kill 50 enemies using the Wraith with the force barrier engaged in the Single Player Campaign.
Pincushion	Get 50 kills with the Hedgehog in the Single Player Campaign.
Silver Trophies
Snipe Hunt	Kill 30 Spinners in the Single Player Campaign.
Xenocide	Kill 1000 enemies in the Single Player Campaign.
Specter Officer	Reach max level (30) with one class in the Cooperative Campaign.
Master Spy	Acquire all the Intel documents in the Single Player Campaign.
Point Man	Gain 1 million XP from ranked games in online Competitive mode.
Exotic Weapon Acquireor	Get 20 kills with each weapon in the Single Player Campaign.
Salute Me	Achieve the rank of Lieutenant.
Primarch Hunter	Kill 200 Elite Chimerans in the Cooperative Campaign.
Gold Trophies
Killing Machine	Realize 10,000 kills in ranked matches in Online Competitive Multiplayer.
Specter Intel	Acquire all Intel in the Cooperative Campaign.

Bronze Trophies
Recycler	Overcome the Goliath in the Single Player Campaign.
Big Game Hunter	Overcome the Marauder in the Single Player Campaign.
Flyswatter	Overcome the Swarm in the Single Player Campaign.
The Bigger They Are	Overcome the Leviathan in the Single Player Campaign.
Fried Calamari	Overcome the Kraken in the Single Player Campaign.
Exterminator	Overcome the Mother Spinner in the Single Player Campaign.
Gold Trophies
OMGWTFBBQ	Finish the Single Player Campaign on Superhuman.
R.I.P. Jordan Shepherd	Overcome Daedalus, complete the Single Player Campaign.
Platinum Trophies
Platinum Trophy	Acquire all Gold, Silver, and Bronze Trophies for Resistance 2.

- Easy 'OMGWTFBBQ' trophy
Instead of playing the entire game on the Superhuman difficulty, simply complete the last chapter on that difficulty to get the 'OMGWTFBBQ' trophy.