SamuraiSixString

Scoped In multiplayer, get 25 headshots with longblaster rifles.

Iron Fist Destroy all towers and bunkers in 'Blood and Iron'.

Trepaning For Fun and Profit Collect all the items (skulls) on "Nightmare"

Ran out of fingers Find 11 hidden bags

Scareless Beat the game while being 50 years old or less.

A Small Transformation Turn small by being attacked (ie, by Amy's↓+P, etc) in Arcade Mode or Offline Versus

Honey the Cat Use Honey the Cat in Arcade Mode or Offline Versus (Press START button on Amy and select)

Not a Scratch on Her! I'm not taking any chances, this bus can't take much more damage. (Ch. 12)

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

Green Teen Finish Shadows of Rose on at least Casual difficulty.

Stage 7 Complete Complete Stage 7 of Arcade Mode (any difficulty)

He Must have a Reason Stand up for someone even though you haven't met him

The Guns of Anchorage Completed "The Guns of Anchorage"

Lurking Around In The Final Reich, find and shoot Dr. Straub.

Stage 6 Complete Complete Stage 6 of Arcade Mode (any difficulty)

Full House Kill 5 enemies with each type of Agony Bolt.

Wooden Warrior Clear the Subterranean Pavilion stage in Scenario Campaign Mode.

It's Electric Black Adam must win the match with the final hit coming from Orbs of Seth

Hold the line! Kill 10 enemies while attacking or defending a control point in Supremacy

I Can Do Blunt Weapons Use Moira's crowbar to defeat 50 enemies in the main campaign.

Three in a Row Collect Spirit Balls from the first three White Wolves in any level - Single Player mode only.

Arctic Grave Push the chief witness into the ice lake in "Joe's Adventures."

Pedro, I'm Sorry... Defeat Mutant Pedro in Claire's Episode Two.

The Next Most Logical Course of Action Start a group dance party

Mutie Blues Complete Blue Line Station in the Campaign

Eastern Explorer Clear the Kigan Island stage in Scenario Campaign Mode.

Operation: Deep Sleep Knocked out 30 people with the Dart Gun

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

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

Stunt Driver Get 100 stunt driver points.

Armed and dangerous Grow as a person, experience betrayal. Again.

Grilled Meat Prepare a big meal using an improvised electric stove

Perfect Freeflow 2.0 Perform a perfect combo including all of Batman's combat moves (any play mode)

Fully Loaded Maxed out all upgrades

Rare Weapons Expert: Lupara Killed 20 enemies with a Lupara

Rebel Without a Pause Complete 30 street races in story mode

Super Cop Complete all single-player episodes on Veteran difficulty

Flyboy Protect the bombers by personally shooting down 12 enemy planes in Battle of the Bulge.

Back to School Play any Popit Puzzle whilst wearing a Newton costume

Eye of the Tiger Win 15 matches in Survivors.

You Know Nothing Kill Kotch before his speech ends.

Knot Too Difficult Clear up a tangled situation in one attempt

Samurai Raised All Combat Reflexes to Master Level

Robot Revolution Hasta la vista, baby

Grave Robber Collect all Death Cards in the game. (Solo only)

Big Cheese Perform 50% of the Single Player Skillshots

One Bad Gato Complete 'Blackcats' on Veteran difficulty. (Solo only)

Ultimate Warrior Reach rank 20 with all roles.

Destructive Beat Complete the Campaign on Very Easy or Easy Difficulty

Hey Speedie! Reach 200MPH in story mode