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Fourth Boss Beat the fourth boss.

Gotta patch them all! Find all SAT Patches

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

Stick Around Impaled Victor Creed outside the Bar

Batman Clear Chapter 2 using Nigel the Bat

Take what you can Collect all Gold bricks (Single Player Only)

Hoist the colours! Sail all the minikits in the hub

Close Encounter Kill 10 alien Necromorphs.

Now bring me that horizon Complete the game to 100% (Single Player Only)

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

It's all in the details Find all Mnesist memories

Break 'em during the thunder Opened the window without making noise

Kling of the Clink Serve time in Toussaint.

True Marksman Win a match with Green Arrow using only arrows

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

Shadow of Your Former Self Defeated 5H4D0W-TP.

Pest control Find all Scaramechs

All hands on deck! Collect all Trophies.

Self-Actualized Reach rank 20 in any role.

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

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

8-hit wonder Perform 40 8-hit Combos

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

Get Up, Mr. Bubbles! Score an Aerial goal while playing in AquaDome

From Beyond the Stars Collect and return all spaceship parts.

Get Rich or Die Trying Have $50,000 current balance in a Special Ops Survival game.

Firestarter Complete a level using only the flamethrower. Melee, grenades & explosives are OK.

Guns For Show Use all guns at least once

A Mystery, Solved Solve the mystery of Leonora Johnson.

Dang Girl, You Ace At This Game Win the most challenging round in Murderlin's Temple.

Light the Fires! Earn 10 Relics (gold or better).

Pitcher Use all throwing weapons at least once

Exo Survivor Successfully complete the Exo Survival Bonus Wave.

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

Dropping L-Bombs Trigger two Logic Bombs in less than 15 seconds

Aerial Superiority - Kill 5 Helghast while in the air Killed 5 Helghast while airborne using the Jetpack

Never Saw It Coming While invisible, used Peeping Tom to knock out 15 enemies with a melee attack.

RIG Master Fully upgrade your RIG.

Inertial Distance In Campaign, wall run over 250 meters.

Plain Luck Hit three or more enemies with the same weapon in one throw

Flip Flop "Flip" a map twice.

I AM the Batman! Reclaim your city.

Chain Reaction Damaged fifteen foes with an exploding enemy, using the Radar Range in Burial at Sea - Episode 1.

New Challenger Join and complete an Online Tournament match

Exo Survival Veteran Play 50 Exo Survival Matches.

The Sampler Platter Kill a Necromorph with every Weapon in the game (single player only).

Sounds Of Animals Fighting Wear all masks at least once

Practice Makes Perfect! Earn 26 Relics (gold or better).

Courier Service You completed all 10 package delivery jobs.

Meet the Deadline You made it all the way to the Cauldron Lake lookout in under 30 minutes.