DizzyKid

A Legend for All Time Complete Jin's Journey in New Game+.

Chain Smoker Disable 50 enemies using smoke grenades.

Operation Deep Execute Complete Operation Deep Execute.

C-Section Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up

Operation Taken Dagger Complete Operation Taken Dagger.

Think Fast Kill 30 Necromorphs with Kinesis objects

There Will Be Blood! Spill 10000 pints of blood

Weaponsmith Made one of every custom weapon

An Impressive Display Earn a Four-Star Rating in any Challenge Arena

The Desk Job You convinced Wayne Haas to let you into the morgue.

Unexpected Guest Disguise yourself as Mr. Norfolk and assassinate Kalvin Ritter.

TLAD: One Percenter Help Billy get his bike back. (The Lost and Damned)

Forgive Me, Father... Take sanctuary in a monastery to clear Heat Level 5.

Operation Black Flag Complete Operation Black Flag.

What Does This Switch Do? Ah..... Defeat an opponent using Rhinos.

Cabin Fever Make it to the cabin in Regular or Hardcore difficulty.

Danger Zone Complete all Speed Traps

From Beyond the Stars Collect and return all spaceship parts.

Full Send Complete all Long Jumps

King of the Skill Equip and use each skill.

Double, Double, Toil And Trouble Create 20 Concoctions.

Opposite of Fail Complete all Fale Quests

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

A Mystery, Solved Solve the mystery of Leonora Johnson.

Silence Those Guns Destroy every enemy Cannon

Scorched Earth Policy Destroy everything in the Zoo Hub.

Skewered in Space Impale an enemy into a Decompression Window to cause it to blow out

Operation Phoenix Complete Operation Phoenix.

Baby Boomer Allow the motherships to spawn 40 babies on Dynamite Heights Level 8.

Operation Blood Storm Complete Operation Blood Storm.

Operation Safe Harbor Complete Operation Safe Harbor.

Chapters 8-11 (Normal) Complete Chapters 8 through 11 on Normal difficulty.

Sea turtles, mate Ride on all types of animal in the game

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

I Will Survive Survive your own rampage and then defeat opponent on their rampage.

And really bad eggs Play as all the Extra Toggle characters

Vault-Tec C.E.O. Collected 20 Vault-Tec Bobbleheads

Paradigm of Humanity Reached Level 20 with Neutral Karma

Feat Fetish Perform every Feat.

Rollin Defeat an opponent using Pandas.

Show us that grin! Stretch the Alien's face as far as you can.

Bomb squad Deliver 5 bombs in Obliteration

YOLO Deceptively Beat the Last Chapter Without Dying on Normal Difficulty or Harder

SHOCK VALUE Use 15 turbos in a single event

General of the Army Enter Prestige 1 in Multiplayer while playing online.

Drift, Drift, Drift Complete all Drift Zones

Operation Grave Robber Complete Operation Grave Robber.

Take what you can Collect all Gold bricks (Single Player Only)

Flying Dragon's Trophy Slayer of Demon “Blue Flying Dragon”

Operation Pure Threat Complete Operation Pure Threat.