Nightwing Revenge
Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack maps (as Nightwing)
Campaign Nightwing
Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)
Family Jewels
Retrieve your stolen goods
Fully Loaded
Collect all of Batman's gadgets and upgrades
Mystery Stalker
Reveal the mystery watcher
Brainteaser
Rescue the fifth hostage from Riddler
Serial Killer
Track down the serial killer
Intellectual
Rescue the fourth hostage from Riddler
Contract Terminated
Stop the contract operative
Puzzler
Rescue the third hostage from Riddler
Bargaining Chip
Reunite the separated couple
Dial Z For Murder
Stop the phone booth killer
Frankly My Dear...
Create 100 Throwing Axemen in a single match.
AR Knight
Complete all augmented reality training exercises
Mastermind
Rescue the second hostage from Riddler
Conundrum
Rescue the first hostage from Riddler
Broken Toys
Destroy it all
Stop the Clock
Time is running out
Exit Stage Right
All the world is a stage
Freefall
Don't look down