Defeat Titan henchman without using Batarangs (any play mode)
Solve 10% of Riddler challenges
Achieve 24 medals on predator
Deliver an explosive knock out blow to the Joker (Normal difficulty)
Defeat two Titan Henchmen at once
100% Complete
Capture and lock up Harley Quinn
Face your biggest fears and keep your sanity
Save all the doctors in medical
Escape from Intensive Treatment to the island surface
Complete a combo of 5 moves (any play mode)
Solve 40% of Riddler challenges
Perform a perfect combo including all of Batman's combat moves (any play mode)
Save Dr. Young from being killed by Victor Zsasz
Defeat Bane
Achieve 24 medals on combat challenges
Complete one predator challenge by using only Silent Takedowns and without being detected
Deliver an explosive knock out blow to the Joker (Easy difficulty)
Solve 70% of Riddler challenges
Achieve 16 medals on predator challenges
Survive the onslaught from the deformed Joker henchman
Glide continuously for over 100m
Complete one combat challenge without taking damage
String up one henchman and drop him to surprise a second (any play mode)
Solve every riddle on the island
Conquer the effects of the Scarecrow's fear gas
Rescue the guards and henchman from the Joker toxin in Decontamination
Catch a Batarang (any play mode)
Complete a combo of 40 moves (any play mode)
Deliver an explosive knock out blow to the Joker (Hard difficulty)
Solve 85% of Riddler challenges
Gain access to Administration after it is locked down by the Joker
Achieve 16 medals on combat challenges
Take down Zsasz in the Patient Pacification Chamber
KO all the henchmen celebrating your arrival at the party
Solve 25% of Riddler challenges
Solve 5% of Riddler challenges
Survive the nightmare of the Scarecrow's fear gas
Complete a combo of 10 moves (any play mode)
Spirit of Amadeus Arkham revealed
Defeat the giant Titan Ivy plant
Ride a Titan henchman and knock down 5 thugs (any play mode)
Complete a combo of 20 moves (any play mode)
Venture into Killer Croc's lair and come out alive
Solve 55% of Riddler challenges
Achieve 8 medals on predator challenges
Achieve 8 medals on combat challenges