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Step Goal Kill an enemy with bear trap.

Arkham City Sirens Drop in on an old friend

One-Armed Bandit Hammer the point home

Catch Find someone to play remote Batarang catch with

Chimney Sweep There is only one way in

Ring Ring Answer a ringing phone

Distress Flare Answer the call for help

Savior Save the medical volunteers

Acid Bath Save the damsel, but is she in distress?

I'm Batman Become the Bat

Predator Gold Achieve 24 medals on predator challenges

Predator Silver Achieve 16 medals on predator challenges

Predator Bronze Achieve 8 medals on predator challenges

Flawless Freeflow Fighter Complete one combat challenge without taking damage

World's Greatest Detective Spirit of Amadeus Arkham revealed

Crack The E Nigma Solve every riddle on the island

Riddle Resolver Solve 85% of Riddler challenges

Mental Athlete Solve 70% of Riddler challenges

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

Conundrum Cracker Solve 55% of Riddler challenges

Mano-A-Mano Defeat Titan henchman without using Batarangs (any play mode)

Night Glider Glide continuously for over 100m

Catch! Catch a Batarang (any play mode)

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

Trail of Fear Lock up your first Supervillain in GCPD.

Journey into Knight Even The Odds.

Big Bang Complete story mode on Easy difficulty

Bigger Bang Complete story mode on Normal difficulty

Biggest Bang Complete story mode on Hard difficulty

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

Face Off Defeat Hadern in the tutorial.

Flesh and Instinct Find your first Shell.

Poisoned Ivy Defeat the giant Titan Ivy plant

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

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

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

Mystery Solver Solve 40% of Riddler challenges

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

Double Trouble Defeat two Titan Henchmen at once

Solitary Confinement Capture and lock up Harley Quinn