Bruttus

Toast Use the upgraded Deadeye secondary fire to kill 2+ enemies, 5 times

Twice Nightly Complete New Game Plus

Electric Avenue Use the EMP to take down 25 drones

Silent Partner Damage the same enemy in Cooperative Mode for 100 kills

The Angelic Ruins Completed the larger challenge in The Angelic Ruins coliseum

Sandman Kill 5 Grims in a row with only headshots

Access Denied Absorb 1000 damage with Auger Shields

Meet interesting people they said Play at least once against all enemy races.

Eye in the Sky Complete 21.

Big Tournament Completed each of the larger challenges in all 3 coliseums

Butterfly Effect Get the bad ending in Daughters.

Backstabber Kill 20 enemies with melée while they are idle

Swamp Warfare Stealth kill 5 enemies in End of Zoe.

Ratcatcher Find all the dead rats in Bedroom in a single play.

A Painful Blockage Summon five Shades in a single Rivals match.

Promise Kept Complete End of Zoe on Easy or Normal.

Helping Hands Revive a Co-op player 20 times

Bouncer Keep Chimeran forces from entering the Brewpub

Archivalist Collect all journals

One Instinct: Survival Get the true ending in Daughters.

Corpse Wagon Detonate fallen Leeches to kill 25 enemies

A First Glimpse of the SSS Read an SSS post for the first time.

Double the Action Complete Campaign Mode In Co-Op Mode

Battering Ram Shield Bash 5 different thugs

Frequent Flyer Zip Kick 5 different thugs

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Skilled Complete A Mission Without Receiving Any Damage

Honor Bound Bind a piece of gear to a class.

Juggler Simultaneously burn, freeze and poison 4 separate enemies

Good Fences Don't allow any counter-attackers into the Washington Square base

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

Ultimate Warrior Reach rank 20 with all roles.

TLAD: The Lost Boy Become leader of The Lost. (The Lost and Damned)

Cursed No More Purify a Cursed piece of gear.

Top Of The Food Chain You successfully killed 20 players with a pistol in a deathmatch.

Campaign Silver Obtain 72 medals on the original Arkham City campaigns (as Batman)

Outsmarted In singleplayer, get a quadruple kill with a single Frag Grenade

Gladiator school Survive 15 consecutive waves with each of the 4 characters.

Join The Midnight Club You won a multiplayer race without damaging your vehicle too much.

For the Night is Dark Endurance Co-op Challenge: Clear 3 Enemy Camps at night in a single expedition

Campaign Gold Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Self-Improvement Activate an APAS enhancement for the first time.

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

"Teamwork" Endurance Co-op Challenge: Collect an Artifact while your partner is down

Get Away from Her! Endurance Co-op Challenge: Kill an enemy melee attacking your partner

Platinum Congratulations!

Brutal Complete Campaign Mode on Superhuman

Destroyer of Worlds Cause major destruction

Conscientious Killer Complete the campaign on any difficulty without shooting any civilians