REM12

Through The Mist Acquire the gas mask.

Endgame Finish the single player campaign on any difficulty.

Back To School Kill all enemy snipers in Sniper Alley without being hit ("Ghosts of Sarajevo")

One-Make Wonder Win Come from behind to win right at the finish line of a one-make race.

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Right Back At Ya! Kill 10 Spitters with a ranged weapon.

Just A Pawn Completed Mission 06 in campaign mode.

Act II Complete Act II.

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

The Return of the Champions Win a race with a rider from the MotoGP™ Champions category, in any game mode

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

0.01 Seconds! Win a race by a margin of 0.01 seconds or less.

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

Seasoned Swashbuckler Complete the Gilded Steam Ship Adventure.

E99 Tech Geek Purchased 10 different Hero Upgrades in single player campaign

Poking the Bush Collect all secrets in Act 1

Dead Is Dead Execute 25 downed zombies.

Jet-Setter Find all the jetpacks in Big Butte County in Story mode
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Duct Tape FTW Create all combo weapons

I've Got This Acquire all upgrades

Silent Death Upgrade the pistol.

It Used To Work Wreck 100 times
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Pacesetter Completionist Gain all stars in 'Pacesetter'.

Game Hunter Kill an enemy of every type in a single player campaign.

Autodefenestration Complete Mission 7 - Beauty And The Beast.

Give Them Something to Believe Complete New Game Plus

Time Master Completed Singularity on Hard Mode

Act III Complete Act III.

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

The Protector of Pontoon Kill all enemies attacking your pontoon from the riverside on 'Weaken The Regime' level.

Velocity Completionist Gain all stars in 'Velocity'.

You know you're REALLY Insane, right? Complete the entire main campaign on Authentic Plus difficulty

Zombie Genocide Master Kill 72,000 zombies

Keepsakes Of War Collect all secrets in Act 2

Mother My Brain Hurts Discovered the strange E99 specimen and what it morphs people into

Evolution Completionist Gain all stars in 'Evolution'.

Dream Race Win the ultimate three-way showdown between a Ford Mark IV Race Car, a Ferrari 330 P4 Race Car and a Jaguar XJ13 Race Car.

A Chance Encounter Completed Mission 07 in campaign mode.

Gran Turismo Rally Complete the "Gran Turismo Rally" Special Event.

In Search of Enlightenment Collect all secrets in Act 3

Tank Oppressor Destroy 20 tanks in sequence.

Unleash The Beast Become a werewolf for the first time.

Gotta Catch'em All Collect all secrets.

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

Torque Completionist Gain all stars in 'Torque'.

On The Rocks Complete Mission 8 - Devan.

Top Of The Line Upgrade your melee weapon for the third time. Yeah!

Anchorman Acquire the grappling hook.

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

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