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Stunt Man Complete any one stunt from the stunt list.

Shocking Rescue Take down Zsasz in the Patient Pacification Chamber

Predator Kill 50 enemies with the bow.

Malpractice Needs More Practice Survive the onslaught from the deformed Joker henchman

Down and Dirty Perform 15 finishers.

Sharp Shooter Perform 50 headshot kills in the single player campaign.

Opportunist Kill 25 unaware enemies.

Leave No Man Behind Rescue the guards and henchman from the Joker toxin in Decontamination

1.21 Gigawatts Acquire Poseidon’s Rage

Relic Hunter Collect 25% of all relics.

Gunslinger Kill 35 enemies with the pistol.

Born Free Escape from Intensive Treatment to the island surface

Scrounger Collect 5000 pieces of salvage.

It's the HUGE One Retrieve the Captain's Key

Freeflow Combo 10 Complete a combo of 10 moves (any play mode)

Matador Win the first Minotaur fight

Picky Loot 200 enemies.

A Survivor Is Born Complete the game.

Rocking Out Acquire Medusa’s Gaze

Arkham Analyst Solve 5% of Riddler challenges

Clever Girl Purchase all skills in one category.

Just What The Doctors Ordered Save all the doctors in Medical

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Looking for Trouble Find 25% of GPS caches.

Clean Up Your Act Defeat Sasha.

Completed Welcome The player has successfully completed the Welcome To Rapture Level

Epic Fumble Force an enemy to drop dynamite that kills two people when exploding.

Breaking And Entering Gain access to Arkham Mansion after it is locked down by the Joker

True Potential Purchase every upgrade for a single power.

One Successful Hack The player has performed at least one successful hack

Hacked a Security Bot The player has successfully hacked a security bot

Recurring Nightmare Face your biggest fears and keep your sanity

Bolt Action Acquire Zeus’ Fury

Zsasz Cut Down To Size Save Dr. Young from being killed by Victor Zsasz

Stunt Coordinator Complete 10 of the stunts on the stunt list.

Good Train Good guys proactively facilitate transportation solutions.

Solitary Confinement Capture and lock up Harley Quinn

Equalizer Kill 75 enemies with the rifle.

Red Baron Take down 100 enemies while they are airborne.

Lateral Thinker Solve 25% of Riddler challenges

Freeflow Combo 20 Complete a combo of 20 moves (any play mode)

Crab Cakes Kill FeeFee the crab.

Double Trouble Defeat two Titan Henchmen at once

Don't They Ever Shut Up! Defeat the Desert Sirens

Electric Hobo Ride the train for 2 kilometers.

Road Kill Take down 25 enemies while riding on the roof of a moving vehicle.

Hitman Get a 100 Hits Combo

Resist The Fear Conquer the effects of the Scarecrow's fear gas