Prof_Antimony

Mercy Dealt the blow of deliverance.

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

Lord of Fishing Went fishing 30 times.

Double Trouble Complete The Pen and the Sword in Multiplayer.

Darkness's Will Defeat No Heart.

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

Closure Put an end to all things.

Magic Socket Obtain the Magic Socket artifact.

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

The Spider's web Defeat 50 enemies using the Amazing Charge Attack

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

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

Go Overboard Finish an enemy with a crew boarding.

Hammer of Destruction Caused 500 or more damage with 1 attack.

Compulsive Hoarder Obtain at least 100 hidden treasure items.

Save the Poet Complete The Pen and the Sword in Single Player.

Worth Every Penny Acquire 1000 credits in one month.

Off My Planet Recover the Hyperwave Beacon.

A Time of Wood and Stone Gathered the lost lore of Cadash Thaig ("Witch Hunt" downloadable content)

The Ultimate Attack! Unleashed a special attack.

Thanatophobia WITHOUT using the Architect, complete the game dying 15 times or less

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

Spiritually Attuned Make 100 Psychic Links (Share or Steal)

Man No More Build a suit of powered armor.

Orb of Delusion Obtain the Orb of Delusion artifact.

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

A preserved Alliance You have decided to save the Alliance from the Guard's coup

In the name of the Enlightened You have decided to save Thélème from the Guard's coup

Time's Teller Defeat the Unknown.

Mercy Kill 5 enemies while they are on fire in Chapter 3: Fire Sale

Head Trauma Use every type of melee weapon on a zombie

Wish Upon A Star Complete Sofia's story

Music Box Clue Found out that the machine box is a music box.

World Champ Training Completed training with Hercule!

Make Friends Acquire all six main characters.

Crystal Clasp Obtain the Crystal Clasp artifact.

A passion for extreme Complete the game in extreme mode

The New Fort Knox Gain 1500 gold bullion

Capable Adventurer Reached maximum adventurer level.

People of Earth, Please Lend Me Your Energy! Collect half of all skills.
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Fusion Training Completed training with Gotenks!

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

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

Island for sale You have favoured the old world at the expense of your roots

Falcon and the Snowman Complete Crime and Punishment in Single Player.

Two for One Complete Crime and Punishment in Multiplayer.

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

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

Hard pressed Complete all levels on Hard

Ship Captain Build your first ship.