L-Elessar

Double Trouble Defeat two Titan Henchmen at once

Lateral Thinker Solve 25% of Riddler challenges

Solitary Confinement Capture and lock up Harley Quinn

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

Recurring Nightmare Face your biggest fears and keep your sanity

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

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Just What The Doctors Ordered Save all the doctors in Medical

Arkham Analyst Solve 5% of Riddler challenges

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

Born Free Escape from Intensive Treatment to the island surface

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

Shocking Rescue Take down Zsasz in the Patient Pacification Chamber

Freeflow Combo 5 Complete a combo of 5 moves (any play mode)

Lost Kat Awakened in Auldnoir.

From Oblivion Completed Episode 1.

Shadows Over the City Completed Episode 2.