Kill 50 enemies with the PM - 9mm

Kill five enemies with a brutal combo

Find one treasure

Complete one predator challenge by using only Silent Takedowns

Achieve 8 medals on predator challenges

Solve 85% of riddler challenges

Complete story mode on Easy difficulty

KO all the henchmen celebrating your arrival at the party

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

Complete a combo of 20 moves (any play mode)