HalStep

If There's A Place You Gotta Go... Look at every map in Trapped in Paradise.

The Learn'd Scholar When the proofs, the figures, were ranged in columns before me...

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

All of the Above You managed to save Dr. Kavanagh and all the prisoners, too.

Anarchy Master Achieve a score of at least 40,000 as a team in Anarchy mode

Ostiophobia Defeat the son.

That Old Adage Apparently, your CASIE augmentation doesn't work on everyone...

Full Marks Infiltration - Complete all the Challenges

Never Forget You revisited the site where Belltower discovered and captured you.

Apex Complete the "Vertigo" Special Ops mission on any difficulty.

Handle with Care Complete the "Special Delivery" Special Ops mission on any difficulty.

Improper Behavior Spraypaint all Zombrex posters

Affinity and Beyond Raised a person's affinity to the maximum.

Beatdown Kill 50 enemies with melee attacks in a single player campaign.

Build a New Friend! Pigsy's Perfect 10： Find all the parts to build Perfect 10.

EMPressive... Complete the "Kill Switch" Special Ops mission on Veteran difficulty.

Melee Master Perform 3 takedowns in 10 seconds

Elevate Your Senses! Activate the Fly Trap. (Map Pack 3 only)

Best Best Friend Pigsy's Perfect 10: Ally a single Mech 2 times.

Gold Digger Find all gold bars

Not on My Watch Rescue all the hostages in the Special Ops mission "Negotiator."

Jeff Gordon NASCAR School Complete the "Jeff Gordon NASCAR School" Special Event.

Cashing Out Activate all the Cash Registers.

Nadeo Space Program Reach a height of 1,2km

Has science gone too far? Get a kill using the HT-95 Levkov, XD-1 Accipiter, Rorsch Mk-1, and Schipunov 42

Treasure Hunter Collect all Diamonds in Securing the Talent.

Living in the Past You conquered 5 warp zones! you're so old school...

Suicide mission Eliminate a guard with a booby trapped clone

Coolest Thing Ever Jumped over a Hextadon in the Deuce

14 carats Gold challenger Get 58 Gold Medals on Alps Public Challenges

The Message Received the duke's commendation.

Dragon Forged Strengthened equipment in wyrmfire.

Walk in the Park Complete the game on hard using hardcore mode

Silence is Golden You completed The Brigmore Witches without alerting anyone

What can possibly go wrong? Pigsy's Perfect 10： Complete all chapters.

Music Lover Collect all harmonica melodies in the SAM'S STORY chapter.

Enforcer Get at least 15,000 points in one Echo round

Rough Landing Completed the urgent mission.

Pure Lunacy Complete Dead Space™ 3 Awakened in Pure Survival Mode

Trine 2 Hard Earn all Trophies in Trine 2

Siege Complete the "Light 'Em Up" Special Ops mission on any difficulty.

Not a Scratch Finish with your tank at full health in the "Iron Clad" Special Ops mission.

Never Tell me the Odds Complete Endor on UNLEASHED difficulty.

Pretentious Do not use any item during a mission

Who Needs Walls? Beat Trapped in Paradise without flipping a switch.

Quadruplets! Pigsy's Perfect 10: Ally 4 enemies using one single Ally device.

Ultimate Pork Roast Recipe Pigsy's Perfect 10: Use all 4 devices on one enemy.

Extinguisher In the Sewer map, kill 5 enemies in 1 wave by setting them on fire then extinguishing them

Red Barrels Explode all the red barrels on the rooftop while in a helicopter

Atomic Obliteration - Complete all the Challenges