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Shock Therapy Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)

In Harmony 500 coop jumps.

Arcade Addict Clear the Arcade Battle in Offline Mode.

Extreme Firefighting Set 5 enemies on fire and then kill them with explosives.

It's a Trap! Kill 20 enemies with Detonator Mines in a deployed state

Ricky Recruit Complete 21 daily challenges in Headquarters.

Investing in the Future Fully upgrade any gear item

Complete Story Mode Complete the main path of the story mode

Speed Demon Finish the game in under 12 hours.

We have to go deeper... Create a level that uses ALL 16 layers

Light Seeds Gatherer Collect 700 Light Seeds.

Ripperologist Achieve 100% synchronization in Jack the Ripper.

New School Place a Hook Hat in your level

Mapper Decorate an Adventure Map

Won them all Win a round of each game mode

Love That Money Collect more than 5,000,000 G.

Brute Force Defeat 100 enemies with the Lead Pipe in Scenario Campaign Mode.

Lesser Evil Deal with Mr. Carella's indiscretion.

Sorry I Made You Wait Save Jill from confinement using Chris.

Hoist the Flag In Multiplayer, capture 10 flags in Frontlines

.45 old school Perform 45 kills with the M1911 Handgun in Multiplayer

Expert Creator Complete all levels in the Tutorials

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

Slippery Slope Create a slide

Think Fast Kill 30 Necromorphs with Kinesis objects

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

Assassin View Find the Assassin's view.

Enemy Hunting Enthusiast Defeat 1000 enemies in Scenario Campaign Mode.

Springy Rescue Rescued the Bot in Twin-Frog Trouble.

It's All Coming Back to Me Recover your memory in Scenario Campaign Mode.

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

Kling of the Clink Serve time in Toussaint.

Self-Actualized Reach rank 20 in any role.

10 Minutes of Create Spend 10 active minutes in Create mode

Pumping Rescue Rescued the Bot in High Inflation.

Warrior Special Dodge the Warrior's attacks 20 times in one battle.

Moon On A Stick Moons don't belong on sticks! Get rid of it!

Completed Grounded Mode Plus Completed Grounded Mode Plus

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

I AM the Batman! Reclaim your city.

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

Fender Bender In Multiplayer, roadkill 5 enemies

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

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

She's gonna blow Max out the thermo in Create Mode

Got 'Em Destroy all Mr. Raccoons hidden in The Ghost Survivors mode.

Ghost Vanquisher Defeat 30 Ghosts.

Part I Complete Complete Part I Of The Story

Thirsty Fighter Pick up 50 drink items in Scenario Campaign Mode.

Treasure Enthusiast Collect 100 treasures in Scenario Campaign Mode.