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Heavy and Frail Collect the Crystal Heart in Chapter 6

Challenge Accepted Complete all challenges in a single mission.

Troubleshooter Completed 5 types of Trouble Missions.

Close Combat Specialist Kill 100 enemies with melee attacks.

Completionist Complete all Extinction challenges and escape in Regular or Hardcore difficulty.

Letting Go Viewed all of Tomizawa's Drink Links.

World's Greatest Detective Complete Batman 75 level with all Minikits unlocked

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

Making Friends Release the Direfolk's prisoner

The Commander You unlocked Commander Video! Double rainbow all da way!

Itegami Learn how to use Blizzard.

Sentimental Value You kept Megan's bracelet for yourself. Apparently, letting go really is the hardest part.

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

The Thing Eric helped Rachel purge her infection

Nasty! Get squirted on by the Fossil Fuel mascot

Well Balanced Breakfast Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.

Impossible Mission Succeeded at 3 dialog conversation checks with a single disguise.

Channel Changer Take control of the enemy held radio and capture it with just seconds remaining

Danger Close Killed 30 enemies using Proximity Mines

Tater Tote Carry science forward

The Bond Entrust the Ring.

Those Who Heed the Call Completed 50 requests.

Well Prepared Select a Starting Location and use an Agency Pickup to smuggle an item into Paris.

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

Spotter Killed 30 Enemies Using Sniper Support

Alley-oop! Shoot down a Hunter or an Eliminator while they are jump attacking in the air.

Conservation Extract all wild animal species.

Nymphs Rock! Helena Handbasket, the Mountain Nymph is Free!

Unwanted Discard 25 fish.

Come back soon! Complete a total of 10 Main Events in a Custom Track created by other players

Trick Arrow Skills Shoot a Lizard with a Special Arrow

Monster Hunter Hunt 500 large monsters.

Howlers ’til the End Side with the Howlers in the Dust District

Proto Tyrant Down Again Defeat the Proto Tyrant.

Frequent Flyer Awarded for discovering 40 different Zoom locations.

Intergalactic Dance Party Get at least 1 of every enemy in the game to dance by using the Groovitron. (Any Mode)

In The Web Consume 50 Web Targets.

Who Baywatches the Baywatch? Run on the beach in slow motion

Scorched Earth Destroy all enemy vehicles and mortar teams while defending Firebase Ripcord in Fracture Jaw.

Bat-Dancer Complete Batman's special Anniversary Dance Puzzle as Batman (1966)

“Worlds of Hurt” – Expert Rescued the Little Sister in “Worlds of Hurt” in under 15:00, on Medium or higher difficulty

Twin Birdbrains Defeat the twin demons, Lechku and Nechku.

Lightning Reflexes Perform a Perfect Block 10 times in a row without taking damage.

Cunning Brain Smash Defeated 3 enemies at the same time with Brain Crush.

...A son of the seas Complete ''The Final Battle''

Beans-Eye Destroy 20 targets at target range

Trap Game Strong Successfully triggered 10 Vehicle Traps

I've Brought You A Gift Defeat the Soul Arbiter

Start a Revolution Completed "Exploited in the Bowels of Hell"

Talent Pool Completed Talent Pool.