Spirit of Amadeus Arkham revealed

Solve 85% of Riddler challenges

Complete story mode on Normal difficulty

KO all the henchmen celebrating your arrival at the party

Defeat Titan henchman without using Batarangs (any play mode)

Solve 70% of Riddler challenges

Conquer the effects of the Scarecrow's fear gas

Defeat two Titan Henchmen at once

Capture and lock up Harley Quinn

Save Dr. Young from being killed by Victor Zsasz

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

Complete a combo of 40 moves (any play mode)

Complete one combat challenge without taking damage (any character)