PROF1CH1LL3R

Call me Terror-Billy! Beat the game on "Call me Terror-Billy!" difficulty or higher

FINE PLAY! (Opening Boss) Achieve all FINE PLAY! technical bonuses in the Opening Stage boss battle.

You're Not Worthy As My Opponent Breach: Send 3 Challenges.

Collector Win all levels in Flag Rally mode

Get Personal Complete all agent personal missions and get all agents to level 20.

Wishing for the Best Complete the "Last Wish" Raid.

Last Blood At the end of Guns of Stygia, kill all the enemies on the walkways before the explosions do

Oh Yeah!!! Complete Nothing is as it Seems

Spiritually Attuned Make 100 Psychic Links (Share or Steal)

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

Making mountains out of molehills Kill 100,000 enemies.

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

Mesa Dorado- Insane Complete Mesa Dorado on Insane.

Prime Directive Shatter Skeletron Prime.

Toon Star Win all levels in all modes

Loot and Pillage Collect $1,000,000

Skeet Shooter Shoot 25 Trip Mines out of the air.

Appease the Volcano Gods An NPC is destined to die in a trial by fire.

Just Like Old Times Dispatch the professor with a shot to the groin.

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

It Did Not Pass Defeat the Balrog

Ryder owns Goliath Complete the Plains of Goliath.

Untouchable Complete SAM'S STORY on Normal or higher difficulty without dying in Batwing encounters.

Quest Love Completed all quests in the game

Head Trauma Use every type of melee weapon on a zombie

It's a Cover, Not a Hat Collect 20 hats on a single character.
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Dedicated Knight Complete 200 Event Quests.

Touch Down Land the plane 10 times without crashing (no auto land)

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

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)

No Friend of Orcs Defeat 100 Orcs

Wait... Wha...?! Kill a plane with an enemy plane

Don't burn yourself out Defeated the Keeper

Cosmonaut Found the Solar System

Feel the Beat, Y'all! Complete "Feel the Beat, Y'all!" challenge

Cold Corruptions Catch all aberrations in The Pale Reach.

It's Camouflage on Some Planet Collect 40 weapon colors on a single character.
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Tailor-made Chose a perfectly fitting armor

Gathering the Magic Used every costume special in combat

Tree Hugger Defend the Ent

Terra Verte- Insane Complete Terra Verte on Insane.

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

Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

The River Complete "The River" challenge

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

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

Up-Lifting On Monorail Factory, kill all enemies whilst riding the lift

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

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