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Unbelievable truth Reach all memory bugs in all memory remixes

Together is Better Play and complete an Online match with one or more Clubmates

Making Some Noise Gained five noisemakers through lockpicking.

Night Lights are for Wimps Get through Rossa Fields without using any of the energy repositories.

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

Surgical You played from the first mission through Kaldwin's Bridge killing fewer than 10 characters

I do like spam! Finish 15 Enforcers off with the Spammer

Fangs Out Earn your first Jackal item (weapon or upgrade).

The White Tiger Complete story mission 3.

400 Beat 400 enemies

MemHunter Elite Finish the game in Memory Hunter Mode

Tempest You killed 6 enemies in less than 1 second

Versatile You killed characters with each weapon and offensive gadget

Master Treasure Collector Find all 179 Treasures

Ripperologist Achieve 100% synchronization in Jack the Ripper.

We're All Very Impressed, Trust Me Juggle an enemy in the air with at least 5 shots.

Once More, With Feeling Finish the main story in New Game+ mode

Blackout Shut down Most Wanted car number 8: Mercedes-Benz SL 65 AMG (Single Player)

Master of Tomb Raider: Underworld Earn all the Trophies in Tomb Raider: Underworld

Operation Dark Quarry Complete Operation Dark Quarry.

The First Million is Always the Hardest Have 1,000,000 bolts banked.

El Matador No one gets hit by a grove beetle in the Deadgrove.

Anyway, Here's "Firewall" Activate the Backburner's firewall.

Queen of the hill Survive the entire Leaking Brain assault (episode 3) without using Power or Regen Pressens

Self-Actualized Reach rank 20 in any role.

A Moment of Reflection Use only Reflectors to destroy the generators in Phonica Moon's security tunnels. (2P +)

Saboteur Complete 150 sabotages.

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

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

Operation Taken Dagger Complete Operation Taken Dagger.

Gotta patch them all! Find all SAT Patches

Think Fast Kill 30 Necromorphs with Kinesis objects

Expert Creator Complete all levels in the Tutorials

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

Operation Black Flag Complete Operation Black Flag.

Machines do it better Use the Sensen RIP to make robots knock 20 human enemies out

It's all in the details Find all Mnesist memories

Pest control Find all Scaramechs

Operation Phoenix Complete Operation Phoenix.

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

Operation Safe Harbor Complete Operation Safe Harbor.

8-hit wonder Perform 40 8-hit Combos

Operation Blood Storm Complete Operation Blood Storm.

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

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

“A Shocking Turn of Events” - Rescuer Rescued the Little Sister in “A Shocking Turn of Events”

“The ‘I’ in Team” – Collector Found all collectable Roses in “The ‘I’ in Team”

Leader of the pack Beat a Mourner without beating its supporting sidekicks

No Assistance Required Complete a Special Ops Mission Mode game on Hardened or Veteran with no player getting downed.