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Things That Go Ka-Boom Learn how to craft Exploding Arrows

Electric Whisper Learn how to craft Electric Arrows

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

Let's Play Complete the first Horde Mode Mission

Throttled Survival Kill the Breeder while using a Relic in Nightfall in Regular or Hardcore difficulty.

Speed Slayer Kill the Breeder in less than 5 minutes in Nightfall in Regular or Hardcore difficulty.

Taking Flight In Gorod Krovi, ride a Dragon.

Survived Mayday Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

Nemesis Meet Skullface

Der Meisterbogenschuetze In Der Eisendrache, obtain all of the ancient bows.

Targets Acquired Get past the first gate in Awakening in Regular or Hardcore difficulty.

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

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

Iron Mode Complete the game in Iron Mode.

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

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

Double Tap Parry two Ocelot attacks in rapid succession

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Barrel of laughs Kill 20 enemies with barrels

Burgertown Escort Service Rescue 1 survivor in Infection.

Undiscovered Truths Find all the intel hidden in Nightfall.

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

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

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Come On And ... Slam 10 zombies at once in Outbreak.

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

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

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

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

Alright, Alright Survive until round 10 in Infection.

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

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

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

Survivor Survive until Round 25 in Outbreak.

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Dressing Overall Equip new cosmetics in each of the Jackdaw's vanity slots

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Collective Madness Add one of each ship class to Kenway's fleet

Egg-stra Awakening! Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.

Nightfall Completionist Complete all challenges and kill the Breeder in Nightfall in Regular or Hardcore difficulty.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

Turnabout is Fair Play Kill 50 Cryptids with the Venom-X weapon in Nightfall in Regular or Hardcore difficulty.

Going Up… In The Darkest Shore, unlock the Ubersprengen.