Complete story mode on Normal difficulty

KO all the henchmen celebrating your arrival at the party

Solve 70% of riddler challenges

Venture into Killer Croc's lair and come out alive

Solve 55% of riddler challenges

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

Gain access to Administration after it is locked down by the Joker

Defeat Bane

Save all the doctors in medical

Solve 10% of riddler challenges

Escape from Intensive Treatment to the island surface