Using a bolt action rifle, kill an enemy Scout in multiplayer

Use a line as a raider.

Respond to an ally's signal.

Change your costume.

Find two super time machine power keys in one match.

Use an active skill as a survivor.

Have 12 murderous dates with Calendar Man

Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Obtain 72 medals on the original Arkham City campaigns (as Batman)

Defeat Lord Ganabelt, bringing light to Cyslodia and its people for the first time in centuries.

Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan

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