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Shocking Rescue Take down Zsasz in the Patient Pacification Chamber

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

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

Lateral Thinker Solve 25% of Riddler challenges

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

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

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

Poisoned Ivy Defeat the giant Titan Ivy plant

Big Bang Complete story mode on Easy difficulty

Mystery Solver Solve 40% of Riddler challenges

Party Pooper KO all the henchmen celebrating your arrival at the party

Night Glider Glide continuously for over 100m

Rope-A-Dope-A-Dope String up one henchman and drop him to surprise a second (any play mode)

Conundrum Cracker Solve 55% of Riddler challenges

Catch! Catch a Batarang (any play mode)

Bigger Bang Complete story mode on Normal difficulty

Mental Athlete Solve 70% of Riddler challenges

Riddle Resolver Solve 85% of Riddler challenges

Letting Old Ghosts Die Completed Episode 9.

Mano-A-Mano Defeat Titan henchman without using Batarangs (any play mode)

Curiosity Killed the Cat Completed Episode 10.

Thick Skin Completed Episode 11.

Crack The E Nigma Solve every riddle on the island

Look Out Below Completed Episode 12.

World's Greatest Detective Spirit of Amadeus Arkham revealed

Kids Just Don't Understand Completed Episode 13.

The Lost Tribe Completed Episode 14.

Memories of Another World Completed Episode 15.

Children of the Past Completed Episode 16.

Fading Light Completed Episode 17.

Adreaux On Call Completed Episode 18.

Falling to Pieces Completed Episode 19.

An Unguarded Moment Completed Episode 20.

No Rest for the Virtuous Completed Episode 21.

Gem Collector Collected a total of 20,000 precious gems.

Flawless Freeflow Fighter Complete one combat challenge without taking damage

Top Cat Raised Kat's reputation to “Top Cat.”