Take down Zsasz in the Patient Pacification Chamber

Destroy Dr. Nefarious' armada.

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

Complete the game on Casual.

Win the Raritanium Tournament.

Master the hoverboots.

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

Defeat two Titan Henchmen at once

Survive the onslaught from the deformed Joker henchman

Complete a combo of 20 moves (any play mode)