Solve every riddle on the island

Complete story mode on Normal 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

Glide continuously for over 100m

Survive the nightmare of the Scarecrow's fear gas

Solve 10% of riddler challenges

Complete a combo of 10 moves (any play mode)