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Silence the Cauldron Completed Chapter 3 of Velvet's tale.

Gary Has His Reasons Hear 20 reasons why Gary won't grab that

Breaking and Entering Break into 30 Depots

Love Unfazed Completed Chapter 6 of Velvet's tale.

Velvet Ending Completed Velvet's tale.

Honor Bound Bind a piece of gear to a class.

L'Cie Paragon Earned a 5-star rating for all Cie'th Stone missions.

Arctic Hurdler Use the shortcut in Polar Pass.

The Caped Crusader Win with Batman using every special move and his Supermove

Kat Working Overtime Completed 40 side missions.

All Lightning-Sword Skills Acquired Acquired all of Cornelius's Psypher skills.

One Who Douses the Inferno Defeated Onyx with Mercedes.

The Fall You sent Diamond Chan on the trip of a lifetime.

Can't Stop This Win an Invasion 1v1 fight

One Who Conquers the Lord of the Netherworld Defeated Gallon with Oswald.

One Who Hunts the Six-Eyed Beast Defeated Darkova with Cornelius.

Completist - Destroy everything on the MAWLR Destroyed every destructible weapon on the MAWLR while on foot and on the Intruder

High Wind Alert Defeated 10 enemies within 10 seconds using one Gravity Typhoon.

Event Horizon Defeated 10 enemies with one Micro Black Hole.

One Who Kills the Snake Defeated Leventhan with Gwendolyn.

One Who Obtains the Cauldron Defeated the Cauldron with Velvet.

Infiltration Clear the "Classified Intel Acquisition" Side Op while riding in the back of a truck

Sewer Aficionado Discovered every mysterious warp manhole.

Tower Master Complete 10 Living Towers

Armageddon Completed the Book of Armageddon.

One Who Inherits Life Witnessed the earth's rebirth.

Ran out of fingers Find 11 hidden bags

Hero of the Story Complete 40 substories.

Vacuum Cleaner Decompress 20 Necromorphs without getting sucked out yourself

Bangers and Trash Put 99 items in the bin
80/99

Killer Croc Have the final hit come from the crocodile in Slaughter Swamp

Faction Champion Reach level 50 in any faction

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Knot Too Difficult Clear up a tangled situation in one attempt

Pipe Coordinator Placed 9 types of furniture in Kat's Pipe House.

King of Battle Achieved five-star ranks in all Coliseum Attack stages

Liberty City (5) Your friends all like you above 90%.

Best of the Bunch Earn the MVP award in any Online Tournament match

Battering Ram Shield Bash 5 different thugs

Going Ape Throw 3 kegs during a match with Gorilla Grodd at the Ace o' Clubs

Lucky Star Get a top-grade item from a Dream Machine.

A Kontender Complete 1 Tower Battle

Victory - Complete Campaign on Elite Completed every mission on Elite difficulty

Frequent Flyer Zip Kick 5 different thugs

I HOPE You Survive Green Lantern must defeat Atrocitus with the final hit coming from Mechanized Assault

Old Fashioned Beat Down Complete HARM Challenges I to V

Burning Rubber! Drift Boost a total of 500 times.

Lifetime Service Award Completed all side missions.

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)

Amazon Magic Perform the Level 6 magic attack with the Amazon.