Inhaled 50 things on Moskito-back.

Escape from Intensive Treatment to the island surface

Survive the onslaught from the deformed Joker henchman

Take down Zsasz in the Patient Pacification Chamber

Crushed 50 Enemies.

You found 10 hidden cages.

Earned 1 Skull Tooth.

Popped 50 Enemy Bubbles.

Head Nymph Betilla is Free!

Climb Hagia Sofia, from the ground to the pinnacle, in under 25 seconds.

Complete Desmond Sequence 3.

Reach level 20 (Multiplayer).