Win the rumble down under.

Defend the assault on your ally's fortress.

Return of the Dynamic Duo.

Deploy the Cloudburst countermeasures.

What is the Cloudburst?

Destroy the first weapons cache in Gotham City.

Restore power to the bridges of Gotham City.

Rescue the ACE Chemical workers.

Lock up your first Supervillain in GCPD.

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

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

Obtain all 108 medals on the original Arkham City campaigns (as Batman)