Here are the fifteen secret achievements you can unlock in Batman: Arkham Asylum for the Xbox 360.
Check out my other guide if you’re looking for the full list of unlockable achievements for Batman: Arkham Asylum.
Baneful Payback (25) – Defeat Bane
Born Free (10) – Escape from Intensive Treatment to the island surface
Breaking And Entering (10) – Gain access to Arkham Mansion after it is locked down by the Joker
Crocodile Tears (50) – Venture into Killer Croc’s lair and come out alive
Daydreamer (10) – Survive the nightmare of the Scarecrow’s fear gas
Double Trouble (25) – Defeat two Titan Henchmen at once
Just What The Doctors Ordered (10) – Save all the doctors in Medical
Leave No Man Behind (10) – Rescue the guards and henchman from the Joker toxin in Decontamination
Malpractice Needs More Practice (10) – Survive the onslaught from the deformed Joker henchman
Poisoned Ivy (50) – Defeat the giant Titan Ivy plant
Recurring Nightmare (10) – Face your biggest fears and keep your sanity
Resist The Fear (50) – Conquer the effects of the Scarecrow’s fear gas
Shocking Rescue (10) – Take down Zsasz in the Patient Pacification Chamber
Solitary Confinement (25) – Capture and lock up Harley Quinn
Zsasz Cut Down To Size (10) – Save Dr Young from being killed by Victor Zsasz
