INDISPUTABLE

Bronzed Complete the Bronze stage of all Skills

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

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

The Annihilator Defeat 5 enemies with a single Arbalest round.

Tough luck, chum! Complete Ragnarök - Part I on any difficulty.

Avenged Confronted the culprit behind the Vael family's murder. ("The Exiled Prince" downloadable content)

Memento Gave Sebastian a family heirloom. ("The Exiled Prince" downloadable content)

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

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

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

Eh...what's up, doc? In cooperative mode, revive wounded players 5 times.

The River Complete "The River" challenge

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

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

The Preserver Transfer the Essences from all fallen Travelers.
4/5

Lightning Emissary Reach the end of the game in 5 hours or less.

World Beater Get an online form of 1.

Loyal Customer Purchased all upgrades in the Motor Forge

Can you dig it? Complete "Can you dig it?" challenge

Survivor Survive until Round 25 in Outbreak.

Alright, Alright Survive until round 10 in Infection.

Release the Kraken! Killed 20 enemies during the boat exfil in Rip Current

Orb of Delusion Obtain the Orb of Delusion artifact.

Man No More Build a suit of powered armor.

The Catfinder Pet all the cats.
8/10

Food is Back Discover the colors that make you hungry

Real Estate Agent Have all possible town NPCs living in your world.

By the Skin of Your Teeth Reach the finish line and win with 1% or less of your fuel remaining.

Terra Verte- Insane Complete Terra Verte on Insane.

Nemesis Complete "Nemesis" challenge

Supernova Get 3 stars on each of the first 14 Echoes

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

Call of the Void Complete Ragnarök - Part II on any difficulty.

Let the Dog Out Complete "Let the Dog Out" challenge

You Can Pet The Dog Pet a Hellhound in MWZ

Make Friends Acquire all six main characters.

Crystal Clasp Obtain the Crystal Clasp artifact.

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

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

Monkey Obsessed! Collect every Monkey Toy in the game.

Revenant Complete the Game on Insane.

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

Test Subjects Use sheep as test subjects in 6 levels

Aspirant, Shivering Isles Reached Aspirant Rank in the Court of Madness

Quill Tosser Killed a Tollusk using only Ground Urchins.

Professional Reach Driver Level 15

People Skills Complete the game in Co-op on any difficulty.

Golden Idol Perform every Single Player Skillshot in the game

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

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer