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Widowmaker Kill 40 enemies with the shotgun.

Now We're Getting Serious Fully mod and completely upgrade any weapon.

Historian Find 75% of all documents.

Born Free Escape from Intensive Treatment to the island surface

Freeflow Combo 10 Complete a combo of 10 moves (any play mode)

Archaeologist Collect 75% of all relics.

Intellectually Superior Complete all optional tombs.

Arkham Analyst Solve 5% of Riddler challenges

Just What The Doctors Ordered Save all the doctors in Medical

Bag Full O' Cache Find 75% of GPS caches.

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Lethal Purchase all skills in all categories.

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

Boom Goes the Dynamite Shoot a bundle of dynamite out of the air.

Recurring Nightmare Face your biggest fears and keep your sanity

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

No Stone Left Unturned Find all documents, relics and GPS caches.

Solitary Confinement Capture and lock up Harley Quinn

Freeflow Combo 20 Complete a combo of 20 moves (any play mode)

Lateral Thinker Solve 25% of Riddler challenges

Double Trouble Defeat two Titan Henchmen at once

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

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)

The Professional Fully mod and completely upgrade all weapons.

Poisoned Ivy Defeat the giant Titan Ivy plant

Big Bang Complete story mode on Easy difficulty

Mystery Solver Solve 40% of Riddler challenges

Sole Survivor In multiplayer, be the only player on your team that isn't dead or downed.

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

Inconceivable! Complete all challenges.

Night Glider Glide continuously for over 100m

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

Ring Ring Answer a ringing phone

Conundrum Cracker Solve 55% of Riddler challenges

Catch! Catch a Batarang (any play mode)

Get Over Here! Rope pull 5 enemies off edges.

Entrapment Catch a player in a snare trap in multiplayer.

Deadeye Shoot 10 enemies off zip lines.

Narcissistic Purchase a new multiplayer character.

Bigger Bang Complete story mode on Normal difficulty

On My Way Up Reach level 10 in multiplayer.

Mental Athlete Solve 70% of Riddler challenges

Communication Breakdown Clear the airwaves

Gladiator Last man standing

Former Adventurer Incapacitate 25 enemies with dodge counter.

Déjà phew! Rescued Special Bot trapped in SSD Speedway.

Wrecking Ball Stop the unstoppable