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Found Kunoichi Find and free Kunoichi

"When It Rains, It Pours" Complete 'Eviction' on Veteran difficulty. (Solo only)

Art is not a crime Create your own Custom Mask

Lost and Found Retrieve all five missing ninja

Undertaker Unlock 50% of the Krypt

Aggro-er You took the Aggro for 100 Flank kills

The Take Greedy bastard. You accepted O'Malley's blood money and let him go.

Pied Piper Incite 50 enemies to dance

Crash Landing Defeat Boss Screeching Owl

Mercy or Prudence? Complete the game without killing any humans

Fearless Complete 'Relentless' on Veteran difficulty. (Solo only)

Complete Blackout Campaign: destroy 22 satellite uplinks

Passive Aggressive Get 3 kills with a single Sentry Bot

NOPE Left when things were getting interesting in Amnesia: The Dark Descent.

Demolition Derby Destroy 50 cars

Teamplayer You killed 5 opposing team members.

Superstitious Hocus Pocus Collect the Coin of the Lost Realm

Duke or Dimwit? Defeated all waves in Duke and Dimwit Theater.

Weedkiller Kill 5 Cysts in the Biology Building with a single poison gas cloud.

Who Dares Wins Completed "Who Dares Wins"

Genetically Superior You came first in 20 singleplayer street races.

Now That's a Big F***** Gun Defeat 40 enemies with the SKULLFEST 9000

Hangar 18 You found and read the secret message. Now you know too much...

Hardened War Hero Complete the game on Hardened or Veteran difficulty. (Solo only)

Extraction In the "Destroy the Anti-Air Emplacements" Side Op, rescue and extract all prisoners via chopper

Combo Master Perform a x10 Co-op Combo

Taffer's Delight Completed Burial at Sea - Episode 2 in 1998 mode.

Little Ninja Complete game on easy or medium difficulty

Restore Balance Defeat the Evil Samurai Warlord

...Where Credit is Due Watch the credits from beginning to end.
"Hey...aren't they the guys who made Dead Head Fred?"

Skullblaster Master Defeat 50 enemies with the SKULLBLASTER

Mind Your Step Navigate Reactor Maintenance without dying

Blind Luck Kill 25 enemies using blind fire.
"Sorry. Didn't see you standing there."

Sage of Philosophy Reach level cap

Roadkill Run over 10 Mutants

TWO heads Complete a mission (excluding New Blood) with a human partner

Blood Sport Perform 100 melee kills

Rope-a-Dope In CitC, knock an enemy around the city with Undertow, then knock him off the edge of the city.

Mightier than the sword Find the Writing Cube artifact.

Botanist Collect one of each ingredient

Rooftop Ruffian Defeated all waves in Raven's Dome.

Survivor Complete the game on the hardest difficulty setting

100 Times Too Many Get killed by the Alien 100 times

Sharpshooter Kill 100 enemies by headshots in "Jimmy's Vendetta".

Five Finger Discount Finish the Supermarket level in "Joe's Adventures."

Museum Curator In CitC, unlocked all Gallery items.

Missile Defense System In CitC, killed an enemy with splash damage by shooting a rocket out of the air.

Goal! Kick 10 Ratz.

Leap of Faith Catch Totec with the grapple while he is jumping over a death fall

Fisherman's Foe Shoot a goldfish.