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Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

Oh Yeah!!! Complete Nothing is as it Seems

The third faction Rescue all the Buddies from their respective predicaments

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

"Passing through" Complete Training Course without getting failed.

Worth Every Penny Acquire 1000 credits in one month.

Attack of Boomer V Destroy 5 enemies at once using a Boomer

A Trace of Venom Kukajin concludes her business in Mournstead.

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

First Step to Awesomeness Win an Online Match

Signing Day Announce where your college ball will be played at.

First Step Earn 3 Stars on any level in Adventure Mode

Off My Planet Recover the Hyperwave Beacon.

To Hell And Back Finish the game on Very Hard Mode with any character

A Hunger Sated Defeat Elianne the Starved.

Room to Grow Upgrade a facility

Gotta Go Fast Escape within 10 minutes.

Blood Donor Pass 5000 levels in Bloody Palace Mode

Back to the Void Reach the Umbral ending.

High Score In Zombie Rush, obtain a Personal Score of 250,000

Gasmoxian Slug Beat all of Nitros Oxide's times in Time Trial Mode.

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Man No More Build a suit of powered armor.

Why won't it work?! Try using a secondary weapon without having sufficient energy.
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Altered Prospects Start a new game with a modifier enabled.

Woah! Earn all the other trophies.

The Road to Glory Win every battle on Victory Road.

Lightning Emissary Reach the end of the game in 5 hours or less.

Supernova Get 3 stars on each of the first 14 Echoes

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

Barrel of laughs Kill 20 enemies with barrels

Indomitable Will Attempt to move an immovable block twice in a row. (Golden Playhouse only)

J-Adventure Maestro Clear all story arcs in J-Adventure mode.

Vengeance Killed 5 Mathusians with fire or electricity.

The Last Step The Iron Wayfarer's journey finally ends.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Chain Gang Killed 2 Malthusians within a timed chain attack.

Car Explosion Cause an enemy to die in a car explosion

Golden Idol Perform every Single Player Skillshot in the game

Gesture Collector Collect all gestures.
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High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Slip and Slide Perform a twelve-meter blood slide

A Horrible Truth Recover the Blacksite Data

With Extreme Prejudice Skulljack an ADVENT Officer

Wander and the Forbidden Clear the game in hard difficulty

Multiplicitous In Zombie Rush, get your score multiplier up to 100

Tinker Build an experimental item in the Proving Grounds

Reaper Defeated the Harvester ("The Golems of Amgarrak" downloadable content)

Proper Penance Crawl for 500 meters