Black Ops Skull Head costume:
To unlock the Black Ops Skull Head costume, beat the game and get all skillpoints on Superhuman difficulty.
To unlock Superhuman difficulty, beat the game on Hard difficulty.
In online multi-player mode go to "Soldier Loadout", press start, then enter the corresponding password to unlock the following items:
ITEM - PASSWORD
Cloven Bandana - 8cba 3462 6595 14d4
Cloven Helmet - f6e0 fa3e f1f4 61e1
Cloven Helmet w/ Bandana - a7f6 6e7c 05ec 1728
Cloven Bearded Head - d708 6b08 0f1c b5f6
Cloven Skin - a8f4 d189 68f8 559e
Hybrid skin cooling apparatus:
When in the Hybrid skin you can turn off your cooling apparatus by pressing L2. This allows you to sprint and see through walls.
Human skin sprint:
While running in the Human skin you can sprint faster by tapping L2.
Unlock the following medals by performing the corresponding tasks in online multiplayer mode:
MEDAL - HOW TO UNLOCK
Assassin - Kill 20 enemies in a row without dying.
Auger Marksman - Kill 100 enemies with the auger.
Base Defender - Get 2000 defensive kills across all game modes.
BBQ Chef - Kill 100 enemies with the L11-2 dragon.
Elite Soldier - Kill 10 enemies in a row without dying.
Fanatic - Compete in 1000 online matches.
Fry Cook - Kill 100 enemies with the arc charger.
Ghost - Get 100 stealth kills.
Going Commando - Get 100 node or flag captures.
Grenadier - Kill 100 enemies with grenades.
Heavy Weapons Expert - Kill 100 enemies with rockets.
Helping Hand - Get 100 assist kills.
Hero - Play 200 ranked matches and place first at least 60 times.
Legend - Play 300 ranked matches and place first at least 100 times.
Marksman - Kill 100 enemies with the M5A2 carbine.
Martial Artist - Get 30 melee kills.
Nathan Hale - Complete a†single player game.
Ninja - Get at least 60 melee kills.
Precise Shot - Finish 10 matches with an accuracy of least 85%.
Professional - Get 100 headshots.
Reclaimer - Get 200 node or flag recaptures.
Savant - Play 100 ranked matches and place†1st 30 times.
Sharpshooter - Kill 100 enemies with the L23 fareye.
Shotgunner - Kill 100 enemies with the rossmore 236.
Tagger - Kills 100 enemies with the bullseye.
Unerring Aim - Finish 20 matches with an accuracy of least 85%.
Unknown - Compete in 5000 online matches.
Up Your Arsenal - Get 100 kills with every weapon.
Earn skill points by completing the corresponding tasks:
SKILL POINT - HOW TO UNLOCK
Acupuncture Is Cheaper - Kill 3 enemies at once with the hedgehog.
Reading Is Fun! - 10 intelligence reports.
Chicks Dig Eyestrain - 20 intelligence reports.
Chimera Pate - Run over 10 enemies with the tank in york.
Gasping for Air - Kill 2 hybrids in a level only after severing all of their hoses.
In For a Penny - Kill 3 hybrids with a single grenade.
Homing Beacons - Tag 4 hybrids with the bullís-eye.
Tag, You're It! - Kill 5 enemies with the bullís-eye in 30 seconds.
Turrets - Use the chimeran sentry gun to kill 6 enemies.
Lightfoot - Take no damage from the mines in manchester.
Nowhere to Hide - Kill 5 enemies in a level by shooting them through a wall with the auger.
This is My Rifle, This is My Gun - Kill the stalker in manchester traffic circle using only the M5A2.
Supersonic Meat Cubes - Kill 3 leapers with a frag grenade.
Too Many Secrets - Collect all intelligence reports.
Reach the following levels to unlock the corresponding items:
LEVEL - HOW TO UNLOCK
Level 01: Private Status - US Solider Body, Head 1 and 2, Small Helmet, American Standard and Dirty Uniforms.
Level 04: Private First Class Status - UK Solider Body, British Green Uniform, Canteen 2.
Level 07: Corporal Status - British Brick Uniform, Grenade Pouch, Leather Packs.
Level 10: Sergeant Status - Pouches, Medic Helmet 2, Head 3.
Level 13: Gunnery Sergeant status - Beret, American Camouflage Uniform.
Level 16: Staff Sergeant Status: British Goggles, Radio, Binoculars.
Level 19: 1st Class Sergeant Status - Commando Body, Commando Standard Uniform, Head 4.
Level 22: Sergeant Major Status - Commando Camoflauge Uniform, Belt knife, Backpack.
Level 25: Sergeant Major Status - Chest Pouches, Head Pouches, Head 5.
Level 28: Sergeant Major of the Army Status - Medic Helmet, Bedroll 1, Chute Pack.
Level 31: Lieutenant Status - Head 6, British Desert Uniform, VTOL Pilot skin.
Level 34: Captain status - Bedroll 2, Pouches, Pouch (Fanny Pack).
Level 37: Major Status - Head 7, British Helmet, Backpack.
Level 40: Lieutenant Colonel Status - Commando Leather Uniform, Chest Radio, Shirtless skin:
Level 43: Colonel Status - Camouflage Helmet, Leather Backpack, Back Holster.
Level 46: Brigadier General Status - Head 8, Canteen 1, Radio.
Level 49: Major General Status - Winters skin, American Advanced Uniform, Hip Bag.
Level 52: Lieutenant General Status - Head 9, American Helmet, American Arctic Uniform, Canteen.
Level 55: General Status- Cartwright skin, Leather Pouch, Canteen.
Level 58: Supreme Commander Status - British Camouflage Uniform, Knife, Head 10.
Level 60: Supreme Commander (3 PIPS) Status - Nathan Hale Skin, Belt Packs, Shovel, Backpack.
Unlock the following skins by performing the corresponding tasks:
SKIN - HOW TO UNLOCK
Mechanic Skin - All skill points in campaign mode -
Cloven Skin - Register at http://myresistance.net and go to your profile for a unique online code
Black Ops skin - Complete Campaign Mode on Superhuman
Black Ops skin with skull head - Complete Campaign Mode on Superhuman with all skill points
Unlock the following rewards by performing the corresponding tasks:
REWARD - HOW TO UNLOCK
Concept Art Pack 1 - Earn 10 skill points.
Concept Art Pack 2 - Earn 20 skill points.
The Mighty Wrench - Earn 40 skill points.
Flip Levels - Earn 70 skill points.
Clank Backpacks - Earn 100 skill points.
MP Mechanic Skin - Earn 126 skill points.
MP Soldier Skin - Beat the game on superhuman mode.
Movie Player - Beat the game.
Complete the game on Campaign mode to unlock the following weapons:
To unlock the Cinematic entitled "Stranger Than Fission", beat the game. To view it, go to "Main Menu" > "Options" > "Cinematics".
Wall of fire:
In Co-op or Multiplayer mode, have one player create a shield with the Auger gun (L1). Then have the other player charge a fireball with the flamethrower gun. Once the shield is in place, shoot the fireball at the shield. The shield will set on fire, but when it disappears the fire will stay in the air. The fire can still be used to damage enemies.
Fall through the ground on "Evacuation":
Play the Evacuation level in Co-op mode. Go outside and kill the Titan and all enemies. Go to the platform that takes you to the next part of the level. Once you have activated the switch, wait until you get high enough to jump down and kill yourself. Jump below that platform. The platform will come down and squeeze you through the ground. You will fall until you have respawned back in 30 seconds.
Getting on top of the elevator on "Evacuation":
In the Bristol mission "Evacuation", when you get in the elevator that takes you to the underground hanger, flip the switch. As the elevator begins to descend, run and jump at the switch to land on top of the elevator. When you want to get down, simply jump into the big hole in the center of the top of the elevator.
Stuck in air in London:
When in the London level and you start in the mall, go outside. There will be a crashed helicopter that is named "Bouncing Betty". There is a snow mound directly in front of the Bouncing Betty sign. Jump in between the helicopter and the snow mound to get stuck in between. In Multi-player Co-op mode, the other player will see you floating there, and moving your legs back and forth. Note: To exit, you must die.
Invisibility and invincibility in Thames:
In Co-op mode, in the last area of Thames when you get the tank, take it through to large snow pile before you lose it. Leave one player in the tank and have the other player out of range of the Steelheads and the Titan. Let them destroy the tank and allow the person to respawn. They will be invisible and unnoticed by enemies. The only way you can die is by jumping over an edge.