xcompany17

The Basics of Survival Combine two items together.

That'll Hold 'Em Use Wooden Boards to board up a window.

Eat This! Counterattack with a sub-weapon.

First Break-In Open a dial safe.

Hip to Add Squares Increase your inventory slots.

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

A Vault-like Mind Open a portable safe.

Customizer Customize a weapon.

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

Path to the Goddess Solve the Goddess Statue puzzle.

Vermin Extermination Destroy a Mr. Raccoon.

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

Don't Need No Stinkin' Gun Defeat an enemy with a knife.

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

Bon Appétit Shoot the grenade you fed to an enemy.

Hats Off! Shoot Tyrant's hat off his head.

Never-Ending Rain Escape the police station.

One Is Better Than None Purchase one skill.

Mystery Solver Solve 40% of Riddler challenges

Keep Their Heads Ringin' Paralyze a licker's sense of hearing.

A Great Need for a Shower Escape from the sewers.

Gone to Hell Complete Chapter 1 in Leon's campaign.

Hack Complete Complete Ada's segment.

Like Skeet Shooting Shoot a zombie dog or a licker out of the air.

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

A Hero Emerges Complete Leon's story.

Night Glider Glide continuously for over 100m

Titular Achievement Earn 10 different titles.

Buried Secrets Complete Chapter 2 in Leon's campaign.

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

Master of Unlocking Open all of the safes and locks in the game.

Check Out My Dogs Customize your dog tags.

Silent Killer Use a stealth attack to take down five enemies.

A Waist of Space Expand inventory slots to max.

Conundrum Cracker Solve 55% of Riddler challenges

Catch! Catch a Batarang (any play mode)

Get on the Plane Complete Chapter 3 in Leon's campaign.

Big Trouble in China Complete Chapter 4 in Leon's campaign.

Rescue the Hostages Complete Chapter 1 in Chris' campaign.

Hide and Seek Complete Sherry's segment.

Bigger Bang Complete story mode on Normal difficulty

The Trouble with Women Complete Chapter 5 in Leon's campaign.