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It's a trap! Score a combo of 75 or more while fighting up the stairs at the "Front Gates of EEEEEEEVIL!"

Sticky Bomb Like You! Put a Trip Mine on a live alien

Serial Skiller Awarded for performing a total of 1000 spells or special skills.

Gold rush Complete five Gold Challenges

Like Mama Used to Make Complete Bedroom.

The House of Luthor Obtain more than 10,100,000,000 Studs (Single Player Only)

Onward to Unity Awarded for finishing Chapter 9.

Treetop Trouncer Awarded for battling through a horde of rampaging monsters to save the World Tree.

Hmmmmm Wield the Mysterious Amulet.

Complete a set During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.

Seeds of independence Liberate 500 slaves.

Completionist Completed all missions in Secret Armory

Bag lady Find all three hidden bags in one chapter

Painting the Town Red Complete all Radula Rooms

Bad Dream Awarded for hitting Danger Lv. 5 in a Dreamer's Maze.

Make It Rain Throw away money on the street.

Bringing the Pain Defeat 50 players using physical attacks in Versus.

Toy Gotham Complete the Bonus level

Hell-Burbia Completed the larger challenge in the Hell-Burbia coliseum

My Hero Rescue all Citizens in Peril (Single Player Only)

When It All Goes Wrong Complete Chapter 8.

Tank You Very Much Complete all instances of Tank Mayhem.

Creature Feature Obtain Creature.

“A Shocking Turn of Events” – Expert The player has rescued the Little Sister in “A Shocking Turn of Events” in under 4:00

Know DP? Know madness Complete the game on Ultra-Violence! difficulty

Milk Tooth Earned 1 Skull Tooth.

Family Memories Fond and Faded Find all Liddell Memories

RIP Davey Glutes Obtain the Mag-Boots.

Queensberry Rules Perform a 4-hit combo with your bare fists in End of Zoe.

Who's The Boss? Defeat the Skrendel Brothers.

Girl Power Unlock all female heroes and villains. (Single Player Only)

Team Building Unlock all characters (Single Player Only)

City Slicker Collect all the gold bricks (Single Player Only)

The End Get 100% (Single Player Only)

Diversity Trainer Awarded for recruiting many different species of monster minion.

Minikit Hero Use all the Minikit vehicles

Om Nom Nom Eat 200 food items.

Apprentice Adventurer Reach level 25.

Dead Useful Kill 10 aliens with environmental explosives

Pimped Out Pad Upgrade one Stronghold to its full glory.

B Side! Played an Unlocked Character in any map.

Seasoned Campaigner Pepper All Snouts in the Game

The Final Countdown You showed millionaire Hugh Darrow that his logic was flawed.

Royal Treasurer Awarded for opening 200 treasure chests.

Twice Nightly Complete New Game Plus

Everything Fit to Remember Find all Memories

Complete Hero Collected all of the Trophies

Monster Masher Awarded for defeating a total of 10,000 monsters.

Hunter Mastery Fully upgrade a Hunter Subclass.

Silver Revenge Obtain 48 medals on the original Arkham City ranked maps (as Batman)