Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)
Unlocked: 12 Mar 2013 16:39:50
Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)
Unlocked: 10 Mar 2013 16:01:14
Perform a perfect combo including all of Batman's combat moves (any play mode)
Unlocked: 08 Mar 2013 15:24:26
Obtain all 108 medals on the original Arkham City campaigns (as Batman)
Unlocked: 07 Mar 2013 20:19:23
Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddlers Revenge (as Batman)
Unlocked: 07 Mar 2013 20:19:23
Obtain 72 medals on the original Arkham City campaigns (as Batman)
Unlocked: 04 Mar 2013 21:38:20
Obtain 36 medals on the original Arkham City campaigns (as Batman)
Unlocked: 04 Mar 2013 10:37:51
Gold Revenge
30Obtain all 72 medals on the original Arkham City ranked maps (as Batman)
Unlocked: 03 Mar 2013 23:36:25
Obtain 48 medals on the original Arkham City ranked maps (as Batman)
Unlocked: 02 Mar 2013 10:41:17
Obtain 24 medals on the original Arkham City ranked maps (as Batman)
Unlocked: 28 Feb 2013 21:44:56
Complete one combat challenge without taking damage (any character)
Unlocked: 02 Feb 2013 17:04:23
Complete New Game Plus
Unlocked: 01 Feb 2013 18:47:03
Use 5 different Quickfire gadgets in one fight (any play mode)
Unlocked: 28 Jan 2013 15:01:17
Genius
40Rescue all the hostages from Riddler
Unlocked: 28 Jan 2013 00:11:10
Complete all 40 of the Catwoman Riddler grid items
Unlocked: 27 Jan 2013 23:37:33
Brainteaser
30Rescue the fifth hostage from Riddler
Unlocked: 27 Jan 2013 10:15:51
Fully Loaded
10Collect all of Batman's gadgets and upgrades
Unlocked: 24 Jan 2013 12:19:38
Intellectual
30Rescue the fourth hostage from Riddler
Unlocked: 24 Jan 2013 10:34:57
Stop all assaults in Arkham City
Unlocked: 24 Jan 2013 09:52:06
Retrieve your stolen goods
Unlocked: 23 Jan 2013 11:57:38
Puzzler
30Rescue the third hostage from Riddler
Unlocked: 23 Jan 2013 10:45:24
Reveal the mystery watcher
Unlocked: 22 Jan 2013 11:59:30
Track down the serial killer
Unlocked: 22 Jan 2013 11:24:25
A moment of remembrance
Unlocked: 22 Jan 2013 10:48:03
Stop the contract operative
Unlocked: 22 Jan 2013 10:18:57
AR Knight
20Complete all augmented reality training exercises
Unlocked: 22 Jan 2013 09:41:29
Broken Toys
20Destroy it all
Unlocked: 21 Jan 2013 21:52:34
Stop the phone booth killer
Unlocked: 21 Jan 2013 21:16:43
Reunite the separated couple
Unlocked: 20 Jan 2013 13:34:05
Mastermind
20Rescue the second hostage from Riddler
Unlocked: 19 Jan 2013 11:47:12
Conundrum
20Rescue the first hostage from Riddler
Unlocked: 19 Jan 2013 11:39:18
All the world is a stage
Unlocked: 18 Jan 2013 13:56:41
Freefall
25Don't look down
Unlocked: 18 Jan 2013 11:51:52
Pick Pocket
20Steal the score of a lifetime
Unlocked: 17 Jan 2013 13:49:40
Ghost Train
25Fight for survival
Unlocked: 17 Jan 2013 13:00:42
Time is running out
Unlocked: 16 Jan 2013 15:41:30
A deadly game of hide and seek
Unlocked: 16 Jan 2013 12:49:23
Sandstorm
25We are legion
Unlocked: 15 Jan 2013 21:21:02
Uncover the secret of Arkham City
Unlocked: 15 Jan 2013 19:00:21
Stop the unstoppable
Unlocked: 15 Jan 2013 10:27:30
Gladiator
10Last man standing
Unlocked: 14 Jan 2013 22:51:05
Clear the airwaves
Unlocked: 14 Jan 2013 21:27:51
IQ Test
10Solve the first riddle
Unlocked: 14 Jan 2013 15:37:11
Drop in on an old friend
Unlocked: 14 Jan 2013 10:49:24
Hammer the point home
Unlocked: 13 Jan 2013 22:39:37
There is only one way in
Unlocked: 13 Jan 2013 21:46:59
Savior
10Save the medical volunteers
Unlocked: 13 Jan 2013 18:57:50
Acid Bath
10Save the damsel, but is she in distress?
Unlocked: 13 Jan 2013 18:18:44
Become the Bat
Unlocked: 13 Jan 2013 18:04:06
Storyteller
10Have 12 murderous dates with Calendar Man
Unlocked: Offline
Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)
Unlocked: 18 Mar 2013 20:33:26
Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)
Unlocked: 16 Mar 2013 17:52:23
Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)
Unlocked: 15 Mar 2013 21:27:48
Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)
Unlocked: 14 Mar 2013 19:23:27
Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge
Unlocked: 03 Feb 2013 20:32:54
The joke's on who?
Unlocked: 03 Feb 2013 20:30:06
Bomb Squad
40Defuse all bombs in 3 minutes or less
Unlocked: 03 Feb 2013 20:19:10
Snap To It
20Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
Unlocked: 03 Feb 2013 20:01:21
Clean up the Dry Docks
Unlocked: 03 Feb 2013 19:57:40
Party's Over
50Destroy all Harley Balloons
Unlocked: 03 Feb 2013 19:53:55
Find a way into the secret base
Unlocked: 03 Feb 2013 18:50:33
No crimefighter should be without this
Unlocked: 03 Feb 2013 17:49:58
Shield Bash 5 different thugs
Unlocked: 03 Feb 2013 17:33:50
Zip Kick 5 different thugs
Unlocked: 03 Feb 2013 17:33:30