Achieve 16 medals on predator challenges

Achieve 24 medals on combat challenges

Achieve 8 medals on combat challenges

Perform a perfect combo including all of Batman's combat moves (any play mode)

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

Solve every riddle on the island

Solve 70% of Riddler challenges

Complete story mode on Normal difficulty

Complete story mode on Hard difficulty

Defeat the giant Titan Ivy plant

Complete a combo of 20 moves (any play mode)

Venture into Killer Croc's lair and come out alive