RNAHIM

I'm dead serious Threw a chaff grenade at ZEKE (single player only).

Forever Marked Progress the story to unlock.

Philanthropist Collect all of the art

Kuwabara, Kuwabara Heard a ghost on the radio.

The Cleaner Escape as a traitor with 50% of any level’s total loot in Arcade Mode or Multiplayer Ranked Match.

Way of the Vanquisher Completed "Against All Comers" on Dream of the Demon or higher.

The Bigger They Are... Destroy a total of 100 Custom Cyborgs during story mode.

Multiple Pockets Recover all the upgrades for the Relics

Ramped Up! Complete a Getaway Activity in a Car Transporter

A Man of Principle Complete the SAM'S STORY chapter earning the Captain's full trust.

Void Collector Recover 30 Void Gems

You Want Blood? 1000 kills.

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

Pursuit of Knowledge Filled 80% of the Datalog.

The path of the Claws Acquire all of the Chaos Claws skills and upgrades

No Going Back Complete 5 missions in Co-Op.

Life Collector Recover 30 Life Gems

It's just a scratch Complete THE TWO COLONELS Chapter without using any Medkits on Normal or higher difficulty.

Witchcraft Brew a potion. Bring out the scales!

Have you tried turning it off and on again? Complete Terminal Error on any difficulty.

Great Owl Find all the Night Hunters' secret stashes in the SAM'S STORY chapter.

Electric Whisper Learn how to craft Electric Arrows

Chaos Collector Recover 30 Chaos Gems

Team Player A 1-on-1 fight is fun, but it's more fun with friends! Try fighting in a Team Battle!

Salute Me Achieve the rank of Lieutenant.

Lemus Figurine Find the Lemus figurine

Let's Play Complete the first Horde Mode Mission

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

Expert Silversmith Recover all the Void, Chaos and Life gems

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

Herr Today, Gone Tomorrow Wolf Mountain - Complete the mission.

Hearty Have 9HP at one time

Kärrhäxan Defeat the swamp maiden

Safari Tour Play at least one full round in every Official Map (Ranked Match)

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

Moving On Up Ya need to do anything to reach the top of the food chain! Let's see a Rank Up via Ranked Match!

Handyman Open and buy all perks in game

The Original Demon Completed all missions in "The First Samurai" on Dream of the Demon.
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Nemesis Meet Skullface

The path of the warrior Acquire all of the skills and upgrades

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

Feeding Time Feed the Narwhal.

Kali Ma Complete Abaddon Asylum on any difficulty.

New Threads Use a new Title and Icon, and fight in one online match. Right on!

Got Your Back Revive your Co-Op partner 10 times.

Icebreaker Equip the Icebreaker.

Tearing Away the Disguise Destroy all of the humanoid Dwarf Gekkos during story mode.

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

Puppet Master Talk to the Press in Career Mode

Gest - Chapter XIII Finish the levels from Chapter XIII in Warrior difficulty