Defeat three enemies with one explosion

Work with a Buddy to subvert a mission offered by a faction

Conquer the effects of the Scarecrow's fear gas

String up one henchman and drop him to surprise a second (any play mode).

Capture and lock up Harley Quinn

Face your biggest fears and keep your sanity

Solve 10% of riddler challenges

Survive the nightmare of the Scarecrow's fear gas

Solve 5% of riddler challenges

Escape from Intensive Treatment to the island surface

Survive the onslaught from the deformed Joker henchman

Rescue the guards and henchman from the Joker toxin in Decontamination

Perform Klose Kombat