Catch a Batarang (any play mode)

Solve every riddle on the island

Solve 70% of riddler challenges

KO all the henchmen celebrating your arrival at the party

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

Survive the nightmare of the Scarecrow's fear gas

Solve 5% of riddler challenges