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Shocking Rescue Take down Zsasz in the Patient Pacification Chamber

Meat Shower Defeat 3 Majini with one grenade or proximity bomb.

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

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

Born Free Escape from Intensive Treatment to the island surface

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

Arkham Analyst Solve 5% of Riddler challenges

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

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

Stop, Drop, & Roll Defeat 3 Majini at once by setting oil canisters on fire.

Recurring Nightmare Face your biggest fears and keep your sanity

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

Solitary Confinement Capture and lock up Harley Quinn

Hacked a Security Camera The player has successfully hacked a security camera

Clean Up Your Act Defeat Sasha.

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

Lateral Thinker Solve 25% of Riddler challenges

True Potential Purchase every upgrade for a single power.

Double Trouble Defeat two Titan Henchmen at once

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

Crocodile Tears Venture into Killer Croc's lair and come out alive

Cattle Prod Defeat 30 enemies with the Stun rod.

Good Train Good guys proactively facilitate transportation solutions.

Freakshow Rodeo Ride Titan henchman and knock down 10 thugs (any play mode)

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

Soldier Complete all chapters on Normal.

Poisoned Ivy Defeat the giant Titan Ivy plant

Electric Hobo Ride the train for 2 kilometers.

Red Baron Take down 100 enemies while they are airborne.

Heart Stopper Defeat a certain enemy by stabbing it in the heart.

Big Bang Complete story mode on Easy difficulty

Ride the Lightning Defeat a Majini using the electric current from a transformer.

Go into the Light Defeat 2 enemies with one flash grenade.

Be the Knife Deflect a bow gun arrow with your knife.

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

Who Do You Trust? Build up a certain level of trust with your partner.

Evil Eats Bad guys never share their food.

Fish in a Barrel Kill 50 enemies by using water.

Good Exposure Good guys are heroes to others.

Junior Geologist Find 25% of the Shards.

Drop Everything Thunder Drop for a total distance of at least 500 meters.

Community Organizer Take over all territory in the Neon District.

Mystery Solver Solve 40% of Riddler challenges

Taking Out The Trash Defeat Alden.

Egg on Your Face Defeat a Majini with a rotten egg.

Evil Riot Bad guys love starting riots.

Goody Two Shoes Reach full positive Karma.