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Ghost You made it through an entire hostile area without so much as a squeak.

Happy Birthday Sweet sixteen. Snuff said.

Hail Mary Defeat Mary

Unforeseen Consequence You convinced Zeke Sanders to let his hostage go.

The Ol' Fashioned Way Use an ink ribbon to save at a typewriter.

Leave no one behind DLC Vietnam: Free the 3 US prisoners of war (Host only).

Wendell's Story DLC Vietnam: Complete the game (Host only).

Solid metal gear Upgrade a weapon to level 5

Death on stage Defeat Doris

Case Closed Read all the files in the main story.

Night Terrors Complete "Lost in Nightmares" on Professional.

You Little Rascal! Destroy every Mr. Raccoon memoriam.

Prepare to die Take care of Aloysius's fate

Model Mania View all models.

Silent Death DLC Vietnam: Perform 25 stealth kills while you have the 4 survival instinct tokens.

Bury the hatchet Defeat McCullum

The Dying Swansea Take care of Swansea's fate

Curator View all concept art.

Credit Where Credit Is Due Earn 200,000 credits.

The Long Halloween Wayne vs Crane in New Story +.

Transhumanist Fully upgrade your first augmentation of choice.

Up the Ante! Upgrade your first weapon of choice.

Bloodlust Collect 5000 microsamples of infected blood with the blood collector.

Unnatural Disaster Defeat The Disaster

A taste for blood Complete the game

Brutality 101 Perform 15 different combat moves in one FreeFlow.

Never Touch the Stuff Complete the main story without using herbs or med injectors.

Make them count DLC Vietnam: Kill a total of 25 enemies with airstrikes (Host only).

Resolute Agent Complete the main story on at least Standard (Classic) difficulty.

Minimalist Complete the main story without Grace using the blood collector.

Speed Demon Complete the main story by releasing Elpis within four hours.

Lesser Evil Deal with Mr. Carella's indiscretion.

Anarchy in the UK Turn a district to hostile status

Witness Witness the beginning of the Raccoon City outbreak.

The Desk Job You convinced Wayne Haas to let you into the morgue.

I AM the Batman! Reclaim your city.

Under The Red Hood Shut down this operation.

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

Dirty Secrets Finish Chapter Three

Remarkable Agent Complete the main story on Insanity difficulty.

Unlife is strange Save this poor plant with water

Child of the Shadows Finish a single chapter without alerting anyone

The Bull You defeated Lawrence Barrett, elite member of a secret mercenary hit squad.

Requiem Obtain all Trophies.

Motherly Ties Put a grieving mother's doubts to rest.

Two-Faced Uncover Lyegrove's secret

DLC: Mars: Slimy Death Hit 10 Arachnids with Crabmones.

DLC: Mars: Nick's Story Complete the game (Host Only).

DLC: Mars:Bug Squasher Perform 10 takedowns on Arachnids using the Power Glove.

DLC: Zombies: FertiliZer Kill 10 Gougers or Hot Heads with the tractor in Fields of Terror.