Defeat the Wrestler without any player dying.

Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Hurt Smithers with one of his own bombs.

Playing from stage 1, defeat the battling robot.

While performing a Team Attack, damage 25 enemies.

Complete a level with more than one player

Build and save a level with more than one player with the thermometer more than 30% full

Complete all levels in the Tutorials

Collect 1,000,000 points over all levels you have played

Travel at incredible speed

Travel to an incredible height

Tag a community level

Complete a community level