| Achievement | How to unlock
|
|---|
- Baneful Payback ( 25 points )
| |
| - Escape from Intensive Treatment to the island surface.
|
- Breaking And Entering ( 10 points )
| - Gain access to Arkham Mansion after it is locked down by the Joker.
|
- Crocodile Tears ( 50 points )
| - Venture into Killer Croc's lair and come out alive.
|
| - Survive the nightmare of the Scarecrow's fear gas.
|
- Double Trouble ( 25 points )
| - Defeat two Titan Henchmen at once.
|
- Just What The Doctors Ordered ( 10 points )
| - Save all the doctors in Medical.
|
- Leave No Man Behind ( 10 points )
| - Rescue the guards and henchman from the Joker toxin in Decontamination.
|
- Malpractice Needs More Practice ( 10 points )
| - Survive the onslaught from the deformed Joker henchman.
|
- Poisoned Ivy ( 50 points )
| - Defeat the giant Titan Ivy plant.
|
- Recurring Nightmare ( 10 points )
| - Face your biggest fears and keep your sanity.
|
- Resist The Fear ( 50 points )
| - Conquer the effects of the Scarecrow's fear gas.
|
- Shocking Rescue ( 10 points )
| - Take down Zsasz in the Patient Pacification Chamber.
|
- Solitary Confinement ( 25 points )
| - Capture and lock up Harley Quinn.
|
- Zsasz Cut Down To Size ( 10 points )
| - Save Dr. Young from being killed by Victor Zsasz.
|
