Complete one predator challenge by using only Silent Takedowns and without being detected
Unlocked: 18 Jul 2012 11:39:04
Achieve 24 medals on predator challenges
Unlocked: 18 Jul 2012 11:28:52
100% Complete
Unlocked: 18 Jul 2012 11:28:52
Achieve 16 medals on predator challenges
Unlocked: 18 Jul 2012 11:12:25
Achieve 8 medals on predator challenges
Unlocked: 18 Jul 2012 09:54:39
Achieve 24 medals on combat challenges
Unlocked: 18 Jul 2012 09:30:11
Achieve 16 medals on combat challenges
Unlocked: 17 Jul 2012 20:09:28
Achieve 8 medals on combat challenges
Unlocked: 17 Jul 2012 19:26:31
Complete one combat challenge without taking damage
Unlocked: 17 Jul 2012 19:22:12
Solve Arkham's biggest mystery
Unlocked: 17 Jul 2012 18:50:54
Solve every riddle on the island
Unlocked: 17 Jul 2012 18:43:20
Solve 85% of Riddler challenges
Unlocked: 17 Jul 2012 17:21:27
Big Bang
50Complete story mode on Easy difficulty
Unlocked: 17 Jul 2012 16:19:10
Bigger Bang
50Complete story mode on Normal difficulty
Unlocked: 17 Jul 2012 16:19:10
Biggest Bang
50Complete story mode on Hard difficulty
Unlocked: 17 Jul 2012 16:19:10
Party Pooper
10Time to break up this party
Unlocked: 17 Jul 2012 15:52:56
Solve 70% of Riddler challenges
Unlocked: 17 Jul 2012 15:30:16
Defeat the giant Titan Ivy plant
Unlocked: 17 Jul 2012 15:16:09
Ride a beast and unleash its power
Unlocked: 17 Jul 2012 11:51:57
Venture into Killer Croc's lair and come out alive
Unlocked: 17 Jul 2012 11:13:08
Conquer the effects of the Scarecrow's fear gas
Unlocked: 17 Jul 2012 10:43:06
Solve 55% of Riddler challenges
Unlocked: 17 Jul 2012 09:41:05
Catch!
5Catch a Batarang (any play mode)
Unlocked: 17 Jul 2012 09:25:12
Glide continuously for over 100m
Unlocked: 17 Jul 2012 09:24:34
String up one henchman and drop him to surprise a second (any play mode)
Unlocked: 17 Jul 2012 09:03:07
Defeat two Titan Henchmen at once
Unlocked: 17 Jul 2012 08:45:23
Mano-A-Mano
10Take on a beast in hand to hand combat
Unlocked: 17 Jul 2012 08:41:37
Solve 40% of Riddler challenges
Unlocked: 16 Jul 2012 16:55:39
Capture and lock up Harley Quinn
Unlocked: 16 Jul 2012 16:53:50
Save Dr. Young from being killed by Victor Zsasz
Unlocked: 16 Jul 2012 15:56:15
Face your biggest fears and keep your sanity
Unlocked: 16 Jul 2012 15:50:47
Perform a perfect combo including all of Batman's combat moves (any play mode)
Unlocked: 16 Jul 2012 15:38:09
Solve 25% of Riddler challenges
Unlocked: 16 Jul 2012 14:48:13
Gain access to Arkham Mansion after it is locked down by the Joker
Unlocked: 16 Jul 2012 14:12:09
Defeat Bane
Unlocked: 16 Jul 2012 11:30:57
Survive the nightmare of the Scarecrow's fear gas
Unlocked: 16 Jul 2012 11:10:46
Save all the doctors in Medical
Unlocked: 16 Jul 2012 10:51:31
Solve 10% of Riddler challenges
Unlocked: 16 Jul 2012 10:37:50
Complete a combo of 40 moves (any play mode)
Unlocked: 16 Jul 2012 10:11:49
Complete a combo of 20 moves (any play mode)
Unlocked: 16 Jul 2012 09:47:25
Escape from Intensive Treatment to the island surface
Unlocked: 16 Jul 2012 09:40:35
Solve 5% of Riddler challenges
Unlocked: 16 Jul 2012 09:35:44
Complete a combo of 10 moves (any play mode)
Unlocked: 16 Jul 2012 09:22:00
Survive the onslaught from the deformed Joker henchman
Unlocked: 16 Jul 2012 09:07:19
Rescue the guards and henchman from the Joker toxin in Decontamination
Unlocked: 16 Jul 2012 09:01:03
Take down Zsasz in the Patient Pacification Chamber
Unlocked: 16 Jul 2012 08:56:32
Complete a combo of 5 moves (any play mode)
Unlocked: 16 Jul 2012 08:48:18