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Invading Executioner Defeat the Invading Executioner in the Howling Pit

Hidden Knowledge Learn the secrets of 5 Black Books

Shadow Killer Kill the Shadow Orca

Bring It Down! Finish Operation Thunderbarge

Close Shave Complete all Under the Bridge and Knife Flight challenges.

Cleaned The Mean Streets You caught 20 criminals through the police computer.

Ambush Defeat 4 enemies within the duration of a single scare effect.

Unstoppable Reach Wave 15 in each mission of Special Ops Survival mode.

Anger is a gift Defeat the Beast

Bone Breaker Kill the Bone Sperm Whale

Titan Mastery Fully upgrade a Titan Subclass.

Raider Complete a Raid.

Cleansing The Land Complete the quest "Cleansing the Land"

Like Mama Used to Make Complete Bedroom.

Parachute Climber Open the parachute and then land on foot 300 meters above the starting height.

Part III Complete Complete Part III Of The Story

Striking First Earn a 1st Strike Master Boast 3 times

The Heavenly Goddess Perform a Level 3 Super with Nariko on 'Fearless'

Hole In One Push the Golf-Bomb into the Hole in Cactus Canyon

For Close Encounters Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.

Strong with this one Unlock all spells for one class

Complete a set During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.

Seeds of independence Liberate 500 slaves.

Completionist Completed all missions in Secret Armory

The Scene of the Crime Rescue Mad Hatter's first hostage.

Atomic Bomb Acquire 100% of the Atomic Evolution set

Bringing the Pain Defeat 50 players using physical attacks in Versus.

Glutton for Punishment Used Ironsides to collect 20 rounds of ammo or more in Burial at Sea - Episode 2.

Hell-Burbia Completed the larger challenge in the Hell-Burbia coliseum

40 and Flirty Reach level 40

Doctor Fate-Ality Perform 3 background bounces on the Empire Theatre background

The Last Laugh The joke's on who?

Werewolf Mastered Acquire 11 werewolf perks

Multitasker Complete all of the special requests in Story Mode.

Squad Goals Score a Goal while in a Club Match (Online Matchmaking only)

Chain Reaction You exploded 10 vehicles in 10 seconds.

“A Shocking Turn of Events” – Expert The player has rescued the Little Sister in “A Shocking Turn of Events” in under 4:00

Into the Den Complete story mission 6.

Queensberry Rules Perform a 4-hit combo with your bare fists in End of Zoe.

Choo Choo! Complete "Train"

Danger Zone Buy all items from the Survival Air Support Armory.

A Just Cause Complete story mission 7.

Head Games Rescue Mad Hatter's second hostage.

Career Criminal Attain 100% Game Completion.

Oversight Become Overseer

Hunter Mastery Fully upgrade a Hunter Subclass.

Beginner's Luck! Win a single online match

Master Architect Build three houses

Twice Nightly Complete New Game Plus

Silver Revenge Obtain 48 medals on the original Arkham City ranked maps (as Batman)