EspFiend

Let's Heat Things Up! Activate your Boost Gems 100 times.

Battle Master Only winners can attain such beauty. Win 30 matches online and I may share my beauty secrets.

Not so pretty boy Beat Khan in his One-on-One

Boom! Defeat 5 foes at once using the War Horn.

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

Worth Every Penny Acquire 1000 credits in one month.

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

Oh Yeah!!! Complete Nothing is as it Seems

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Three For The Road In the pursuit of strength, one must have a goal! In Endless Battle win 3 matches in a row.

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

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

Head Trauma Use every type of melee weapon on a zombie

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

No Damage! Finish any Stage without taking damage.

Off My Planet Recover the Hyperwave Beacon.

Great Explorer Trigger a total of 50 route changer Power Plays.

Donut Mess with a Cop Unlock Officer Dick.

ARCHIVIST Collect all documents

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

Fruits of Labor Go into Training mode 10 times.

Loot and Pillage Collect $1,000,000

High Score In Zombie Rush, obtain a Personal Score of 250,000

Barrel of laughs Kill 20 enemies with barrels

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

Going to the Vet Earn the "Veteran" Challenge Collection.
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Survivor Survive until Round 25 in Outbreak.

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

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

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

Man No More Build a suit of powered armor.

Super, Man! To battle is to win a fight with overwhelming strength! Show me you can do 100 Super Combos!

Out Of Reach Get an online form of 25 or better.

Like a glove… Finish trial #6 with 3 hearts left without picking up a spell.

Mode master Win an online game of every mode in every difficulty at least once.

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

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

Bloody Lust Kill Isaac with Samson

Songstress' Costume You have witnessed all of Milia's shame breaks. (Story Mode, Solo Play)

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

World Beater Get an online form of 1.

Decked Out Purchase or unlock all relics, equipment, and upgrades.

Noble's Uniform You have witnessed all of Islay's shame breaks. (Story Mode, Solo Play)

Butchered Barachiel Defeat Barachiel in the engine room of the celestial ship.

That Party was Ace Ace every Adventure level in The Journey Home.

A Blank Card Kill Isaac with Eden

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

Monkey Obsessed! Collect every Monkey Toy in the game.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.