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

Complete story mode on Easy difficulty

Defeat the giant Titan Ivy plant

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

Venture into Killer Croc's lair and come out alive

Defeat two Titan Henchmen at once

Capture and lock up Harley Quinn

Save Dr. Young from being killed by Victor Zsasz

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

Defeat Bane

Save all the doctors in medical

Escape from Intensive Treatment to the island surface

Survive the onslaught from the deformed Joker henchman