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Stone Cold Pinkerton Completed the Main Campaign on Hard difficulty or above.

Child Of the 80's Beat the top high score of one hideout arcade.

Failure Is An Option Fail by using your last animal to blow up a wall.

Italian Plumber Kill an enemy with a wrench, using Vault followed by Drop Attack

Hold your Herrings, Captain! Save Crocker from committing suicide.

Pancake Parlor Pancaked an enemy in the Stingray.

Walking the Dinosaur Spend 30 minutes with Raptor Ned as your homie.

The Prophecy, I Made It Up! Switch from Vitruvius into Ghost Vitruvius.

I Can Back it Up Equip a new Background Image

A Deadly Flower Finish Kew Gardens case.

Sore Winner In multiplayer, clobber one of your chums as the champ.

Their Crimes, Your Punishments Complete the game.

Guilty Brotherhood Finish Half Moon case.

Multi Face-eted Defeated the Empyrean Sentinel.

Unexpected Package Place 60 bombs in enemy pockets with Bentley.

Haunted House Catch the thieves at Notting Hill Manor.

Space Station Infestation Complete Level 4 - Space Station Infestation

Including, But Not Limited To Purchase all Master Builders.

The Special People In Your Life Purchase all Characters (Single Player).

A Methodical Man Gather 26 Character Portraits.

Apollo Wins Have the perfect workout during the Training Montage.

Lucky 7 Win 7 coop competitions

Orphan of Kos Defeat Great One: Orphan of Kos.

A Very Genki Holiday Complete all instances of Genki Holiday.

Suicide is Not an Option! Prevent Miss White from suicide.

Flawless Victory! Defeat a boss without losing a single life!

Lost But Not Forgotten Discover the location of the Chimera

Make a List, Check it Twice Complete all instances of Naughty and Nice.

Undercover Obtained the Spy costume.

New Recruit Obtained the Special Forces costume.

Aggravated Assault Stop all assaults in Arkham City

Grow a Friend Grow a Plant Pot

Hassan Would Be Proud Pickpocket a full collection of every item in the game.

He's Still on the Naughty List Deliver a present to Zinyak in 'The Santa Clawz'.

A Little Bit Broken Recruit Bruce Banner

Ayayaya! Defeat 20 enemies as Sheriff Not-A-Robot.

Laurence, the First Vicar Defeat the beast that was once Laurence, the First Vicar.

Health Inspector Destroy all the green polyps inside Paul in 'Pop His Top'.

Let's twist again… In multiplayer, start a dance party with your friends.

High Tide Complete In Darkness on Hardened, Veteran, or Realistic.

Business Business Business Earn 1,000,000,000 studs.

Dog-fancier Interact with Toby in every case.

Ah! The Kragle! Kragelize 10 people with the Kragle gun.

Grrrg! Smash a chair as Bad Cop.

Practice Makes Perfect Enter Practice Mode

A Time to Play Completed “A Time to Play.”

Hit Me More! Obtain the Premium Nanotech upgrade

Fully Loaded Collect all of Batman's gadgets and upgrades

The Whole Story Finish all side quests

Healthy Play Take a ten minute break between any dreams.