Daughter Of The Demon!
Discover the Lazarus pit.
The Demon Lives Again!
Follow the assassin's trail.
In Storybook Endings
Lock up Mad Hatter in GCPD.
Head Games
Rescue Mad Hatter's second hostage.
The Scene of the Crime
Rescue Mad Hatter's first hostage.
Perfect Knight - Day 2
Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddlers Revenge (as Batman)
A Few New Tricks
Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge
Gadget Attack
Use 5 different Quickfire gadgets in one fight (any play mode)
Sphinx' Riddle
Complete all 40 of the Catwoman Riddler grid items
Pay Your Respects
A moment of remembrance
Genius
Rescue all the hostages from Riddler
Aggravated Assault
Stop all assaults in Arkham City
Frequent Flyer
Zip Kick 5 different thugs
Twice Nightly
Complete New Game Plus
Snap To It
Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
Bomb Squad
Defuse all bombs in 3 minutes or less
Party's Over
Destroy all Harley Balloons
The Last Laugh
The joke's on who?
Battering Ram
Shield Bash 5 different thugs
How's It Hanging?
Clean up the Dry Docks