PixelatedPat

Cleansing The Land Complete the quest "Cleansing the Land"

Aqua Medal Defeated the Chieftain's Mech using Brittle Knack

Ruby Medal Cleared a chapter as Vampire Knack

Function() Unlock every Transistor Function.

The power of Democracy Kill 25 enemies with one stratagem.

The Nursery Get into the Nursery

Done That Complete all Hammerlock's Hunt side missions.

The Scene of the Crime Rescue Mad Hatter's first hostage.

Stone Cold Killer Complete mission “Blood from a Stone”.

Putting Things In Perspective Complete any Timeline

All-Rounder Won races on 10 different tracks.

Stick it to the enemy Survive 15 consecutive waves using the analog combat controls.

Seeds of independence Liberate 500 slaves.

Impossible Rescue Rescued the Bot in Megamix Mastery.

Lights Out! In 'Black Cats', blast out all of the spot lights in the Japanese cargo convoy. (Solo only)

Like Mama Used to Make Complete Bedroom.

Glutton for Punishment Used Ironsides to collect 20 rounds of ammo or more in Burial at Sea - Episode 2.

Everything() Deal at least 2048 damage in one Turn() in the Practice Test.

The Professional Completed the street chase in Comrades in under 2 minutes 30 seconds without dying

Extractamundo! Extract with a full squad on a Hard difficulty or more mission.

Dial B For Bomb You unlocked the special ability of Packie's car bomb placement.

Photo Finish Win a race with less than 0.3 seconds between you and the second place.

Baron von Nukem Shoot down 20 alien fighters

Not Part of the Job Description The water's rising, but we'll get out of this without a scratch. (Ch. 5)

Find() Inspect 10 completed Function Files.

Twice Nightly Complete New Game Plus

That Lucky Old Sun Completed That Lucky Old Sun.

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

The Last Laugh The joke's on who?

Double Down Played 10 hands of Blackjack.

Komodone Win against Komodo Joe in the Adventure Mode.

Perfect Aim Win a match as Deathstroke without missing a shot (minimum 12 shots)

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

Arena Explorer Complete a Crystal Challenge in the Adventure Mode.

Killer Look Complete the Mayor's outfit.
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From the Jaws Save your Co-Op partner from an execution by killing the attacker.

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

Substance Abuser Drink beer while on steroids or vice-versa in SP

Career Criminal Attain 100% Game Completion.

Head Games Rescue Mad Hatter's second hostage.

Gladiator Completed a Coliseum Attack stage

Blast Corps Kill 30 enemies with explosion damage.

Noms Eat 10 pieces of food in SP

By a Whisker Won a race with a lead of 0.5 seconds or less.

Older Than the Trees Kill the Wendigo.

Kamikaze Complete a level on Regular difficulty or higher using only melee or grenades. (Solo only)

G.I. Blues Completed G.I. Blues.

One Armed Bandit Played 10 spins of Slots.

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

Completionist Completed all missions in Secret Armory