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Just What The Doctors Ordered Save all the doctors in Medical

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Hacked a Safe The player has successfully hacked a safe

Defeated Dr. Steinman The player has defeated the crazed Dr. Steinman

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

Recurring Nightmare Face your biggest fears and keep your sanity

Zsasz Cut Down To Size Save Dr. Young from being killed by Victor Zsasz

Solitary Confinement Capture and lock up Harley Quinn

Hacked a Security Camera The player has successfully hacked a security camera

Lateral Thinker Solve 25% of Riddler challenges

Double Trouble Defeat two Titan Henchmen at once

Researched a Splicer The player has taken at least one Research Photo of a Splicer

Bought One Slot The player has purchased one slot in any Plasmid or Tonic track

Resist The Fear Conquer the effects of the Scarecrow's fear gas

Quality Research Photo The player has taken a Research Photo of the highest grade

Crocodile Tears Venture into Killer Croc's lair and come out alive

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

Poisoned Ivy Defeat the giant Titan Ivy plant

Defeated Peach Wilkins The player has defeated Peach Wilkins

Big Bang Complete story mode on Easy difficulty

Upgraded a Weapon The player has acquired at least one weapon upgrade

Basic Inventor The player has successfully invented at least one item

Mystery Solver Solve 40% of Riddler challenges

Restored the Forest The player has restored the forests of Arcadia

One Fully Upgraded Weapon The player has fully upgraded one weapon

Completed Cohen's Masterpiece The player has completed Sander Cohen's great masterpiece

Party Pooper KO all the henchmen celebrating your arrival at the party

Maxed One Track The player has purchased every slot in one of the Plasmid or Tonic tracks

Defeated Andrew Ryan The player has defeated Andrew Ryan

Two Fully Upgraded Weapons The player has fully upgraded two weapons

Broke Fontaine's Mind Control The player has broken Fontaine's mind control

Became a Big Daddy The player has become a Big Daddy

Defeated Atlas The player has defeated Atlas

Skilled Hacker The player has successfully completed 50 hacks

Three Fully Upgraded Weapons The player has fully upgraded three weapons

Rope-A-Dope-A-Dope String up one henchman and drop him to surprise a second (any play mode)

Fully Researched Gun Splicer The player has fully researched the Leadhead Splicer

Conundrum Cracker Solve 55% of Riddler challenges

Ammo Inventor The player has successfully invented all possible ammo types

Catch! Catch a Batarang (any play mode)

Fully Researched Thug Splicer The player has fully researched the Thuggish Splicer

Maxed All Tracks Purchased every slot in all four Plasmid and Tonic tracks

Little Sister Savior The player has completed the game without harvesting any Little Sisters

Four Fully Upgraded Weapons Fully upgrade four weapons

Bigger Bang Complete story mode on Normal difficulty

Fully Researched Spider Splicer The player has fully researched the Spider Splicer

Knock, knock Breach a locked door with the first blow.

Prolific Photographer Take at least one photo in every research group