Resist The Fear
Conquer the effects of the Scarecrow's fear gas
50 ✓ March 8th, 2011
Crocodile Tears
Venture into Killer Croc's lair and come out alive
50 ✓ March 8th, 2011
Poisoned Ivy
Defeat the giant Titan Ivy plant
50 ✓ March 8th, 2011
Big Bang
Complete story mode on Easy difficulty
50 ✓ March 9th, 2011
Bigger Bang
Complete story mode on Normal difficulty
50 ✓ March 9th, 2011
Biggest Bang
Complete story mode on Hard difficulty
50 ✓ March 9th, 2011
Predator Gold
Achieve 24 medals on predator challenges
50 ✓ August 8th, 2011
Solitary Confinement
Capture and lock up Harley Quinn
25 ✓ March 7th, 2011
Double Trouble
Defeat two Titan Henchmen at once
25 ✓ March 7th, 2011
Freeflow Silver
Achieve 16 medals on combat challenges
25 ✓ June 28th, 2011
Predator Silver
Achieve 16 medals on predator challenges
25 ✓ August 7th, 2011
Baneful Payback
Defeat Bane
25 ✓ March 7th, 2011
Crack The E Nigma
Solve every riddle on the island
20 ✓ August 7th, 2011
Arkham Analyst
Solve 5% of Riddler challenges
20 ✓ March 7th, 2011
Cryptic Investigator
Solve 10% of Riddler challenges
20 ✓ March 7th, 2011
Lateral Thinker
Solve 25% of Riddler challenges
20 ✓ March 7th, 2011
Mystery Solver
Solve 40% of Riddler challenges
20 ✓ March 8th, 2011
Conundrum Cracker
Solve 55% of Riddler challenges
20 ✓ April 13th, 2011
Mental Athlete
Solve 70% of Riddler challenges
20 ✓ May 8th, 2011
Riddle Resolver
Solve 85% of Riddler challenges
20 ✓ August 7th, 2011
World's Greatest Detective
Spirit of Amadeus Arkham revealed
20 ✓ August 7th, 2011
Shocking Rescue
Take down Zsasz in the Patient Pacification Chamber
10 ✓ March 7th, 2011
Zsasz Cut Down To Size
Save Dr. Young from being killed by Victor Zsasz
10 ✓ March 7th, 2011
Party Pooper
KO all the henchmen celebrating your arrival at the party
10 ✓ March 8th, 2011
Leave No Man Behind
Rescue the guards and henchman from the Joker toxin in Decontamination
10 ✓ March 7th, 2011
Freeflow Combo 20
Complete a combo of 20 moves (any play mode)
10 ✓ March 7th, 2011
Freeflow Combo 40
Complete a combo of 40 moves (any play mode)
10 ✓ June 6th, 2011
Rope-A-Dope-A-Dope
String up one henchman and drop him to surprise a second (any play mode)
10 ✓ March 7th, 2011
Mano-A-Mano
Defeat Titan henchman without using Batarangs (any play mode)
10 ✓ August 8th, 2011
Freakshow Rodeo
Ride Titan henchman and knock down 10 thugs (any play mode)
10 ✓ March 8th, 2011
Malpractice Needs More Practice
Survive the onslaught from the deformed Joker henchman
10 ✓ March 7th, 2011
Freeflow Bronze
Achieve 8 medals on combat challenges
10 ✓ April 17th, 2011
Predator Bronze
Achieve 8 medals on predator challenges
10 ✓ March 9th, 2011
Invisible Predator
Complete one predator challenge by using only Silent Takedowns and without being detected
10 ✓ March 9th, 2011
Flawless Freeflow Fighter
Complete one combat challenge without taking damage
10 ✓ March 9th, 2011
Born Free
Escape from Intensive Treatment to the island surface
10 ✓ March 7th, 2011
Just What The Doctors Ordered
Save all the doctors in Medical
10 ✓ March 7th, 2011
Daydreamer
Survive the nightmare of the Scarecrow's fear gas
10 ✓ March 7th, 2011
Breaking And Entering
Gain access to Arkham Mansion after it is locked down by the Joker
10 ✓ March 7th, 2011
Recurring Nightmare
Face your biggest fears and keep your sanity
10 ✓ March 7th, 2011
Night Glider
Glide continuously for over 100m
5 ✓ March 7th, 2011
Catch!
Catch a Batarang (any play mode)
5 ✓ March 8th, 2011
Freeflow Combo 5
Complete a combo of 5 moves (any play mode)
5 ✓ March 7th, 2011
Freeflow Combo 10
Complete a combo of 10 moves (any play mode)
5 ✓ March 7th, 2011
Perfect Knight
100% Complete
75 
Freeflow Gold
Achieve 24 medals on combat challenges
50 
Freeflow Perfection
Perform a perfect combo including all of Batman's combat moves (any play mode)
10