Defeat 50 enemies with the 92FS - 9mm

Defeat three enemies with one explosion

Defeat 50 enemies with hand-to-hand combat

Defeat 20 enemies with hand-to-hand combat

Completed "Paving the Way"

Completed "Aiding the Outcasts"

Completed "Shock Value"

Complete one predator challenge by using only Silent Takedowns

Complete story mode on Normal difficulty

KO all the henchmen celebrating your arrival at the party

Spirit of Amadeus Arkham revealed

Solve 85% of riddler challenges

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