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

Awarded when you successfully complete all 10 Island Freeburn Challenges. These can be completed by 2 - 8 players

Dressed a male party member in women's clothing.

Upgraded 3 vehicles to Works spec

Earned the approval of the Enlistment Corps.

Summoned your own pawn.

Combined two materials to make an item.

Kill the Forest Guardian

Find every ingredient in the game

Cast lightning trap, lightning storm, and lightning bolt simultaneously

Shatter 3 enemies with one hit

Killed an enemy plumber-style

Open 50% of the chests in the game