Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin) - Batman: Return to Arkham - Arkham City
Destroy all Harley Balloons - Batman: Return to Arkham - Arkham City
The joke's on who? - Batman: Return to Arkham - Arkham City
4,336/4,9081,425/1,50067/70
3,329/3,6061,400/1,50066/70
198/2,280155/1,0003/25