Venture into Killer Croc's lair and come out alive

Defeat two Titan Henchmen at once

Save Dr. Young from being killed by Victor Zsasz

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

Solve 10% of riddler challenges

Solve 5% of riddler challenges

Win the first Minotaur fight

Retrieve the Captain's Key

Open a Health Chest when your health meter is already full

Complete story mission 1.

Cause chaos for the first time.

Save all the doctors in medical

Complete a combo of 10 moves (any play mode)