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Aggravated Assault Stop all assaults in Arkham City

Underground Tour Return to the underground while no mission is active and travel from one end of the catacombs to the other.

On Cloud 99 Earn 99 Lives.

New Recruit Obtained the Special Forces costume.

God of Hope Master Valhalla and master thyself

Fully Loaded Collect all of Batman's gadgets and upgrades

Lean On Me Heal or buff 100 times whilst in a group.

A Time to Play Completed “A Time to Play.”

Master Craftsman Craft a high-end item.

Cursed Gold Achieve 5 Gold Awards.

Blood Junkie Collect all Canopic Jars and max out your blood meter.

10 heads are better than 1 Kill 10 zombies in a row with headshots.

50x Combo Complete a combo of 50 moves (any play mode, any character)

Head of the Household Cleared every mission and challenge mission in the Maid Pack.

I Can Back it Up Equip a new Background Image

The Rules of War Completed “The Rules of War.”

Food Chain You assassinated an assassin

Chew 'Em Up Kill ten enemies with environmental hazards
1/10

Baby, You're a Rich Man Earned $500,000

Rootin' Tootin' Lootin' Loot 5 Exceptional Weapons.

Bleeder's Digest Discover all of Mary's Teachings.

Rooftop Walker Earned a silver medal or better in Auldnoir Free Race II.

Freeflow Perfection Perform a perfect combo including all of Batman's combat moves (any play mode)

Head of the Class! Defeat 20 enemies with headshots

Predator Gold Achieve 24 medals on predator challenges

Stealth First Ask Questions Later Stealth take-down 5 enemies

Goodie Monster Find all the Evidence Collectibles.

It's Just a Bad Dream! Complete "Lost in Nightmares" with an S rank.

Fight the Fear Croft Manor: Defeat 100 enemies in Lara's Nightmare

Jot This Down Find a Journal Entry

Get a Grip Grab twenty-five enemies with the GRP
0/25

Take a Note Find a Journal Note

You Again? Find all 3 Boat Captain Keys

Learning is Fun Complete Tutorial

The Dreamlife of Ghosts Completed “The Dreamlife of Ghosts.”

Practice Makes Perfect Enter Practice Mode

Without A Paddle Survive the pipeslide

People Person Play with 10 different co-op partners for at least 15 minutes each.

Easy Come, Easy Go Acquire more than 15,000 Fleeting Echoes on a single attempt

Aced It Get an A+ on any chapter

Apprentice Plumber Earned a silver medal or better in Endestria Energy Race II.

Untouchable Replay 5 different levels without taking any damage

Understood the Assignment Complete 9 Mastery Quests

Mushroom Slider Earned a silver medal or better in the Rift Plane Sliding Race.

Cortex's Crazed Contest Earn the Key in Sunset Vista.

Fight at the Forum Participate in a fight at The Forum arena

Still Got It! Hit all targets in the attic with the toy gun

Family Reached the Loyal state with all three Underbosses

Mugshot Take a photo using photo mode

Gotham Base Jumper Jump off the tallest building in Arkham City and glide for 1 minute without touching the ground.