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The Hero Returns Took up the Hero's mantle in New Game+.

Vendetta Destroyed the career of Guard Captain Eams. ("Leliana's Song" downloadable content)

Family Reunion Achieved a compromise between Olivia and Minnie.

Special P.E.T. Benefits Acquired Special Delivery, P.E.T., and Employee Benefits.

Iron Mode Complete the game in Iron Mode.

Super Collision Course Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Glaivend Basin without using any items!

Defeated the Adephagos Defeat the Adephagos with Duke, and bring about the beginning of a new world, one without blastia.

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

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

Dinner Date Pigsy's Perfect 10: Collect all hidden food and pin-up girls.

Good Listener Found 20 Portable Phonographs.
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I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

Bookwyrm This is proof that you've become quite familiar with the Library. How to obtain this is kind of a secret, but if you take the time to do a bit of reading now and then, you should be pleasantly surprised.

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)

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

Chatterbox Sometimes, after you've found a discovery point or when you're at a save point, you have the opportunity to press L3 to initiate a conversation between your companions. This is proof that you've experienced many Things and had a lot of Opinions about them.

ARCHIVIST Collect all documents

Views From the Abyss STU: Complete "The Spider's Thread" mode.

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

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

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

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

The Bereaved Unlock Wendy

36 Challenges This is proof that you've collected all 36 anomalous orbs. You've poked around in every nook and cranny, you've laughed, you've cried, you've questioned your assumptions... But you made it!

Secret Mission 15 Use Karol's Nice Recovery Smash arte to heal Zagi's poison in the fourth battle against him.

The Postman Delivered the journal to Lucien.

Go Figure Plant ShadowChild's figurine.

Help Desk Get the Blade lobby desk clerk to help you bypass security.

The Clockwork Tomb Complete the quest: The Clockwork Tomb

Reaper Defeated the Harvester ("The Golems of Amgarrak" downloadable content)

Burning times Complete a level on Master difficulty without using bombs, overdrive or boost with a custom ship

Extract The Data... Get the data that Pritchard is after from within the Palisade Blade.

Expose The Truth! Decide what to do with the evidence you uncovered.

Cloak and Dagger Met secretly with the agent of the Divine. ("The Exiled Prince" downloadable content)

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

Faith in the Fallen Take a leap of faith

The Stick of Truth Equip a Legendary Bo (Claws of Awaji)

Catalog Conqueror STU: Complete all nekomata jobs in "The Spider's Thread" mode.

All in Find the Morenia

Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

Bloodlust Defeat 10000 enemies.

Bandits Defeat 500 Bandits

Enough Coin to Disappear You survived The Brigmore Witches in low chaos with 10,000 coins

Secret Mission 11 Destroy the core in the battle against Outbreaker to prevent magic from inverting day and night.

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Clean Sweep Complete the System Rift Jensen Story without killing anyone.

LEGACY Complete all recordings

A Just Cause Decide what to do with the Altered Biocell.