BioSkunkBob

The third faction Rescue all the Buddies from their respective predicaments

Just Like Old Times Dispatch the professor with a shot to the groin.

Last Blood At the end of Guns of Stygia, kill all the enemies on the walkways before the explosions do

Going to the Vet Earn the "Veteran" Challenge Collection.
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BEWILDERMENT Clear CHAPTER 2.

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

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Prince of the Screen Reach King of the Screen level 3

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

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

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

Oh Yeah!!! Complete Nothing is as it Seems

Eh...what's up, doc? In cooperative mode, revive wounded players 5 times.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Overwhelming Confidence Complete 25 successful Challenge runs.
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Ogre Savior Complete all stages of Oni Spirits.

Came back haunted Earn all other trophies

Elevator Out of Order Reach the roof in 'Highrise' under 45 seconds

Views From the Abyss STU: Complete "The Spider's Thread" mode.

Folk Hero Complete all quests in the world in Story mode
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Pro-nimusha Complete the game and get an S Rank.

Scantily-Clad Jutsu Unlock Kaede's alternate outfit.

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

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

Friends With Benefits Had relations higher than 90 with all factions in the Modern Era

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Spiritually Attuned Make 100 Psychic Links (Share or Steal)

Throwable Collector Collect all throwables.
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Operation Foxley Wolf Mountain - Complete the mission with a 2 star rating.
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Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Shadow Warrior Complete the game on normal or higher difficulty setting

Head Hunter Defeat Xing on normal or higher difficulty setting

Jack of All Trades Complete a Race-Off,  Rampage and Head 2 Head Event

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

Not Cloudy, No Chance of Rain Start playing Jao Jab 2.

The Ultimate Champion Complete the game on Ultimate difficulty.

Woah! Earn all the other trophies.

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

Merciless Kill 50 crawling demons in campaign mode

Don't speak. Just die! Complete all missions (Nephilim or above) on Hardcore mode with Vergil

1000 kilometers Drive a total of 1000 kilometers.

Reaper Kill 30 Sowers.

The Most Famous Hedgehog in the World Have your photos taken in Studiopolis Zone

Don't burn yourself out Defeated the Keeper

Street Fighter Complete all Dragon's Teeth Assignments

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

You've Finished the Carnival Experience Unlock all trophies in LocoRoco Midnight Carnival.

Last Chance for Rollermance Start playing Dolangomeri 2.

Looking Sharp Unlock Rath