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Knowledge is Power Collect all logs through out the game.

Multiple Pockets Recover all the upgrades for the Relics

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Great Success Gain S+ on all U.S.S. missions on Veteran or Professional difficulty

Sightseer Visit all landmarks

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

Void Collector Recover 30 Void Gems

Field Modified, Kill Certified Upgrade every slot for a weapon

Always Remember Your First Finish playing a Versus match (social or competitive)

Hell Razor Kill a Burnout using the helicopter that arrives in Crash Site

Life Collector Recover 30 Life Gems

Supernova Get 3 Stars on 20 different Echoes

Electric Whisper Learn how to craft Electric Arrows

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

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

Chaos Collector Recover 30 Chaos Gems

Express Yourself Collect 20 emotes on a single character.
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Tomb Raider Collect all relics, artifacts and weapons

Salute Me Achieve the rank of Lieutenant.

Expert Silversmith Recover all the Void, Chaos and Life gems

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

Minuteman Earn 10 mission citations.

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Happy Trails Complete By the Trail of Our Dead

Fast Track On Mean Street, kill all the snipers on the rooftop before the DNA bomb explodes

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

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

The First Song Secure the song in the Swotulu.

KISS Complete KISS.

Prospector Complete all treasure maps

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

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

Catch 'Em All Collect all 88 available equipments

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

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

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

Tank Oppressor Destroy 20 tanks in sequence.

Peace in our time Successfully complete a Resistance Mode mission on normal difficulty.

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

I Heard THAT Collect all 12 Audio Logs

Now THIS is a Knife Kill 30 enemies using kill moves. (Single Player)

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

Time Master Completed Singularity on Hard Mode

Target Score Sampler! Beat the target score in any Chapter (Points Count Mode).

Collateral Damage Destroy 30 EyeScouts and Helicopters in Ginormica’s levels in Coop.

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

Duct Tape FTW Create all combo weapons

The Last Suit You'll Ever Wear Customize an agent

Fly Swatter Destroy 3 Flypods within 5 seconds on any level of Insect Infestation.

Hoarder Have a total of at least 150,000 points in Echoes Mode's total high score