Big Bang

Complete story mode on Easy difficulty

Bigger Bang

Complete story mode on Normal difficulty

Party Pooper

KO all the henchmen celebrating your arrival at the party

Poisoned Ivy

Defeat the giant Titan Ivy plant

Freakshow Rodeo

Ride Titan henchman and knock down 10 thugs (any play mode)

Conundrum Cracker

Solve 55% of Riddler challenges

Crocodile Tears

Venture into Killer Croc's lair and come out alive

Resist The Fear

Conquer the effects of the Scarecrow's fear gas

Night Glider

Glide continuously for over 100m

Catch!

Catch a Batarang (any play mode)

Double Trouble

Defeat two Titan Henchmen at once

Mystery Solver

Solve 40% of Riddler challenges

Solitary Confinement

Capture and lock up Harley Quinn

Invisible Predator

Complete one predator challenge by using only Silent Takedowns and without being detected

Freeflow Combo 40

Complete a combo of 40 moves (any play mode)

Lateral Thinker

Solve 25% of Riddler challenges

Zsasz Cut Down To Size

Save Dr. Young from being killed by Victor Zsasz

Recurring Nightmare

Face your biggest fears and keep your sanity

Breaking And Entering

Gain access to Arkham Mansion after it is locked down by the Joker

Freeflow Combo 20

Complete a combo of 20 moves (any play mode)

Cryptic Investigator

Solve 10% of Riddler challenges

Baneful Payback

Defeat Bane

Daydreamer

Survive the nightmare of the Scarecrow's fear gas

Just What The Doctors Ordered

Save all the doctors in Medical

Arkham Analyst

Solve 5% of Riddler challenges

Born Free

Escape from Intensive Treatment to the island surface

Freeflow Combo 10

Complete a combo of 10 moves (any play mode)

Malpractice Needs More Practice

Survive the onslaught from the deformed Joker henchman

Shocking Rescue

Take down Zsasz in the Patient Pacification Chamber

Freeflow Combo 5

Complete a combo of 5 moves (any play mode)