LiquidSolid

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

I've Got This Acquire all upgrades

Zombie Genocide Master Kill 72,000 zombies

A Lover, Not a Fighter Successfully complete 10 No Kill battles during story mode.

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

Dark Side Complete zone 21 without rescuing any survivors.

Oh, the Humanity! Successfully Heat Snipe a gas tanker.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Give Them Something to Believe Complete New Game Plus

The Spider's web Defeat 50 enemies using the Amazing Charge Attack

You're Not Worthy As My Opponent Breach: Send 3 Challenges.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

Master of the reliquary Gather all the fingers of Frankenstein

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

The Force Complete Zone 18 without upgrading weapons.

Nice Try Shoot down an enemy projectile with a Heat Snipe.

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Dinner Date Pigsy's Perfect 10: Collect all hidden food and pin-up girls.

Part IV Complete Complete the four chapters of Part IV.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Head Trauma Use every type of melee weapon on a zombie

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Hard pressed Complete all levels on Hard

Thanks for Playing! Complete the Final Chapter.

AMG Completionist Gain all stars in 'AMG'.

Burning times Complete a level on Master difficulty without using bombs, overdrive or boost with a custom ship

Pit Master Discover and fight Hidden Kombatant 3 in Arcade Ladder

The Spider's shadow Complete a Noir level without triggering an alarm

A Perfect 10 Earn a PERFECT medal on Zone 10.

Muppet Mastery Complete The Muppet pack's story

Start of Something Good Befriend your first Perfect Partner character.

Substory 4 Finish 4 substories.

Insert Coin Complete all achievements in one game from The Arcade.

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

Big Top! Achieve a score of 2500 or higher in "Gonzo's Endless Cannon Run Ride!"

Flipper Flip the level 6 times in Protector mode

Old West Legend Finish the game on very hard difficulty.

Worst Nightmare Master the Worst Nightmare Dark Knight track

Reunion Visit another Player's Base

Crusade - Chapter XIII Finish the levels from Chapter XIII in Knight difficulty

Subjügator Won 10 match-made multiplayer battles.

Boosted! Hold Super Boost for 15 seconds in Protector mode

Varterral's Fall Defeated the varterral on Hard or Nightmare difficulty ("Witch Hunt" downloadable content)

Smooth moves Unlock all Combat Upgrades