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

Conquer the effects of the Scarecrow's fear gas

Defeat two Titan Henchmen at once

Play the game after a week long break.

Complete a level without having to use a single Power-up.

Solve 25% of riddler challenges

Complete the story mode on any difficulty

Complete White's Estate.

Face your biggest fears and keep your sanity

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

Survive the nightmare of the Scarecrow's fear gas

Solve 10% of riddler challenges