ThumbsUpaWinking

...And the Dust Settles Defeat General Gaius

Saboteur Complete 150 sabotages.

Anyway, Here's "Firewall" Activate the Backburner's firewall.

Equal and opposite Find an Anti-Cube.

Batman Clear Chapter 2 using Nigel the Bat

You Must Defeat Shen Long Defeat Xi Wang Mu

Prima Donna Awarded for learning all of Esther's songs.

Relic Runner Completed a Time Attack stage

Sorry I Made You Wait Save Jill from confinement using Chris.

World Traveler Collect one glowing piece from each of the 4 toy sets.

Gotta patch them all! Find all SAT Patches

Slimy Rescue Rescued the Bot in Suck It Up.

C-Section Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up

Got your back Kill 50 enemies that are actively attacking other players.

Completed Grounded Mode Plus Completed Grounded Mode Plus

TLAD: One Percenter Help Billy get his bike back. (The Lost and Damned)

Think Fast Kill 30 Necromorphs with Kinesis objects

Expert Creator Complete all levels in the Tutorials

Machines do it better Use the Sensen RIP to make robots knock 20 human enemies out

Cabin Fever Make it to the cabin in Regular or Hardcore difficulty.

It's all in the details Find all Mnesist memories

Kamfetti Kill 5 enemies with the fans on Kamino.

Under The Red Hood Shut down this operation.

An Impressive Display Earn a Four-Star Rating in any Challenge Arena

Double, Double, Toil And Trouble Create 20 Concoctions.

Pest control Find all Scaramechs

Adapting to Circumstance Achieve Weapon Proficiency level 30

Monkey Magic Complete all chapters on Normal.

Retail Therapy You unlocked the special ability of buying guns from Little Jacob.

Dirty Secrets Finish Chapter Three

Hanging Rescue Rescued the Bot in Handhold Havoc.

8-hit wonder Perform 40 8-hit Combos

I AM the Batman! Reclaim your city.

From Beyond the Stars Collect and return all spaceship parts.

Opposite of Fail Complete all Fale Quests

Guns For Show Use all guns at least once

The Destination of Hatred Defeat Seymour Omnis

A Mystery, Solved Solve the mystery of Leonora Johnson.

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

Silence Those Guns Destroy every enemy Cannon

A Terrifying Assassin Turn the tables on Verdugo, the right hand of Salazar.

Raising the Stakes Awarded for collecting your first prize at the casino.

Pitcher Use all throwing weapons at least once

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

Show us that grin! Stretch the Alien's face as far as you can.

Leader of the pack Beat a Mourner without beating its supporting sidekicks

Take them down screaming Perform a Takedown on a Blind Screamer.

The bigger they are... Kill 5 Heavies with takedowns.

“A Shocking Turn of Events” - Rescuer Rescued the Little Sister in “A Shocking Turn of Events”

Temper Temper Hunt your first tempered monster.