Biggest Bang
50Complete story mode on Hard difficulty
Unlocked: 20 Feb 2013 13:15:49
Achieve 24 medals on predator challenges
Unlocked: 20 Feb 2013 04:20:52
100% Complete
Unlocked: 20 Feb 2013 04:20:52
Achieve 24 medals on combat challenges
Unlocked: 19 Feb 2013 11:00:53
Achieve 16 medals on predator challenges
Unlocked: 19 Feb 2013 00:37:52
Achieve 16 medals on combat challenges
Unlocked: 18 Feb 2013 23:54:10
Achieve 8 medals on predator challenges
Unlocked: 18 Feb 2013 02:25:42
Complete one predator challenge by using only Silent Takedowns and without being detected
Unlocked: 17 Feb 2013 00:48:54
Achieve 8 medals on combat challenges
Unlocked: 17 Feb 2013 00:10:25
Solve Arkham's biggest mystery
Unlocked: 16 Feb 2013 03:13:19
Solve every riddle on the island
Unlocked: 16 Feb 2013 03:06:12
Solve 85% of Riddler challenges
Unlocked: 16 Feb 2013 01:45:57
Big Bang
50Complete story mode on Easy difficulty
Unlocked: 16 Feb 2013 00:45:56
Bigger Bang
50Complete story mode on Normal difficulty
Unlocked: 16 Feb 2013 00:45:56
Complete a combo of 40 moves (any play mode)
Unlocked: 16 Feb 2013 00:45:06
Perform a perfect combo including all of Batman's combat moves (any play mode)
Unlocked: 15 Feb 2013 06:27:27
Party Pooper
10Time to break up this party
Unlocked: 15 Feb 2013 03:12:39
Defeat the giant Titan Ivy plant
Unlocked: 15 Feb 2013 02:36:35
Solve 70% of Riddler challenges
Unlocked: 15 Feb 2013 02:06:06
Ride a beast and unleash its power
Unlocked: 15 Feb 2013 01:47:02
Venture into Killer Croc's lair and come out alive
Unlocked: 15 Feb 2013 01:10:22
Conquer the effects of the Scarecrow's fear gas
Unlocked: 15 Feb 2013 00:46:16
Complete one combat challenge without taking damage
Unlocked: 14 Feb 2013 23:42:34
Defeat two Titan Henchmen at once
Unlocked: 14 Feb 2013 12:43:28
Mano-A-Mano
10Take on a beast in hand to hand combat
Unlocked: 14 Feb 2013 12:42:27
Solve 55% of Riddler challenges
Unlocked: 14 Feb 2013 12:26:59
Solve 40% of Riddler challenges
Unlocked: 10 Feb 2013 20:08:26
Capture and lock up Harley Quinn
Unlocked: 10 Feb 2013 19:57:39
Complete a combo of 20 moves (any play mode)
Unlocked: 10 Feb 2013 10:34:03
Save Dr. Young from being killed by Victor Zsasz
Unlocked: 10 Feb 2013 10:05:58
Face your biggest fears and keep your sanity
Unlocked: 10 Feb 2013 10:01:27
Solve 25% of Riddler challenges
Unlocked: 10 Feb 2013 09:31:41
Gain access to Arkham Mansion after it is locked down by the Joker
Unlocked: 09 Feb 2013 11:02:35
Glide continuously for over 100m
Unlocked: 09 Feb 2013 10:59:54
Catch!
5Catch a Batarang (any play mode)
Unlocked: 09 Feb 2013 10:18:58
Defeat Bane
Unlocked: 08 Feb 2013 12:47:49
Solve 10% of Riddler challenges
Unlocked: 08 Feb 2013 12:36:21
Survive the nightmare of the Scarecrow's fear gas
Unlocked: 08 Feb 2013 12:31:10
Save all the doctors in Medical
Unlocked: 08 Feb 2013 12:15:30
Complete a combo of 10 moves (any play mode)
Unlocked: 08 Feb 2013 12:09:24
Solve 5% of Riddler challenges
Unlocked: 07 Feb 2013 15:31:29
Escape from Intensive Treatment to the island surface
Unlocked: 07 Feb 2013 15:23:11
String up one henchman and drop him to surprise a second (any play mode)
Unlocked: 07 Feb 2013 15:09:36
Survive the onslaught from the deformed Joker henchman
Unlocked: 07 Feb 2013 14:25:52
Rescue the guards and henchman from the Joker toxin in Decontamination
Unlocked: 07 Feb 2013 14:19:50
Take down Zsasz in the Patient Pacification Chamber
Unlocked: 07 Feb 2013 14:12:27
Complete a combo of 5 moves (any play mode)
Unlocked: 07 Feb 2013 14:03:04