VirtualChemist

Event Horizon Defeat 100 Enemies with a Neon Singularity

Novice Complete 25% of all Challenges

Fish in a Barrel 25 Stasis + Weakpoint Kills

…Bada Boom! Defeat 20 Enemies in a row with Homing Missiles

Professional Complete 50% of all Challenges

Great Responsibility 50 Hostage Saves

Beta Survival Diamond Achieve a score of 500,000 points

Alpha Survival Diamond Achieve a score of 500,000 points

Alpha Rescue Diamond Achieve a score of 500,000 points

Turret Syndrome Overload 25 Turrets

Expert Complete 75% of all Challenges

Gamma Survival Diamond Achieve a score of 500,000 points

Beta Rescue Diamond Achieve a score of 500,000 points

Top of the Class Earn a total of 10,000,000 points

Unleashed Purchase every Upgrade

Perfectionist Complete all of the Challenges in the Game

Noble Achievement Collect all Trophies

Cryptic Investigator Solve 10% of Riddler challenges

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

Behind Closed Doors Close an open door by yourself.

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

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)

Poisoned Ivy Defeat the giant Titan Ivy plant

Big Bang Complete story mode on Easy difficulty

Mystery Solver Solve 40% of Riddler challenges

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

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

Conundrum Cracker Solve 55% of Riddler challenges

Men at Work Complete Chapter 14.

Finish Him Finish What you started.

Catch! Catch a Batarang (any play mode)

Bigger Bang Complete story mode on Normal difficulty

Mental Athlete Solve 70% of Riddler challenges

Made Man Finish the story on medium difficulty or higher.

Less is More Take down two or more enemies with one shot.

Riddle Resolver Solve 85% of Riddler challenges

End of the Night Get ending 1.

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

Crack The E Nigma Solve every riddle on the island

Petrol Head Drive at least thirty different vehicles.

World's Greatest Detective Spirit of Amadeus Arkham revealed

Tough Nut Finish the story on hard difficulty level.

Diamond Hard You cleaned out Vangelico to pay back Martin Madrazo.