StrongBart

Vroom! Vroom! Complete any hub race using Harley Quinn's Motorcycle

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)

Teamwork Endurance Co-op Challenge: Warm up from freezing by standing next to a campfire lit by your partner

Communication Skills Endurance Co-op Challenge: Kill 5 enemies that have been marked by your partner

All Minikits Lost! Complete Bizarro level with all Minikits unlocked

Task Force Expert Complete The Squad level with all Minikits unlocked

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)

Alone Time Endurance Co-op Challenge: Spend at least one day more than 60 meters apart

"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

Belly Of The Beast Complete an Ops Activity on Master difficulty or higher.

All In A Name You'll never stand out without an original title. Try choosing an appropriate title for me.

Platinum Congratulations!

Rollover Total a car by flipping it over.

No One Left Behind Endurance Co-op Challenge: Revive a player 3 times in a single expedition

Daily Devotee Completed 5 Daily Missions.

Expert Explorer Reach level 50.

Irish Legend Complete all territories of Ireland (Wrath of the Druids).

Queen Anne’s Revenge Playing as Blackbeard, perform an acrobatic kill and a gun kill in less than 10 seconds.

Curator Discover all of the collectibles in the Campaign.

Duke or Dimwit? Defeated all waves in Duke and Dimwit Theater.

Echoes of the Fast Obtain a Bronze, Silver, or Gold medal in Time Attack for the Forge of Destiny Challenge Tomb

Elevator to the Gallows Kill a player using a lift that has been trapped with Booby Trap.

Skillful Raider Endurance Challenge: Open 5 Codices or Sarcophagi without getting caught in a trap

T-Bone: Looking For Trouble Complete all side investigations

Fireworks In The Final Reich, retrieve the artifact.

Do What Is Right Complete the Siege of Paris campaign (The Siege of Paris).

Bookworm Unlock 50% of all entries for every enemy file in the status menu

Epic Raider Complete a Raid on hard difficulty.

Taffer's Delight Completed Burial at Sea - Episode 2 in 1998 mode.

Seeing Red Collect 10,000 Red Orbs

T-Bone: Tag Team Complete 10 coop missions

Future Past Enter the Assassin Bureau in Francia (The Siege of Paris).

Echoes of the Furious Obtain a Bronze, Silver, or Gold medal in Score Attack for the Forge of Destiny Challenge Tomb

Broken Halo Fight Nelo Angelo a second time and prevail

Rope-a-Dope In CitC, knock an enemy around the city with Undertow, then knock him off the edge of the city.

Bad Bull Defeat the Ghost Auroch Boss (The Siege of Paris).

Rooftop Ruffian Defeated all waves in Raven's Dome.

Cold Turkey Fight Griffon a second time and prevail

Museum Curator In CitC, unlocked all Gallery items.

Missile Defense System In CitC, killed an enemy with splash damage by shooting a rocket out of the air.

Weird War Tales Defeat 15 enemies using any type of hacking.

The Spider and the Fly In Shadows of Evil, kill 10 zombies ensnared by a Widow’s Wine grenade.

Lèse-majesté Complete 10 Rebel Missions (The Siege of Paris).

Maximum Mileage Buy a used car with 300,000km or more travel distance.

We Nobles Three Defeat all three Frankish Nobles (The Siege of Paris).

Master and Apprentice Endurance Co-op Challenge: Escape the forest after surviving 10 days with at least 20 Artifacts

Nightstalker Complete "The Nightstalker's Trail" quest.

Preemptive Strike Playing as The Orchid, block 10 abilities from opponents with Sabotage.