RogerBang

Anorectic Starve for three days.

Better Safe Than Sorry Unlock all Secondary Weapons

Bookwyrm This is proof that you've become quite familiar with the Library. How to obtain this is kind of a secret, but if you take the time to do a bit of reading now and then, you should be pleasantly surprised.

Cold Corruptions Catch all aberrations in The Pale Reach.

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

Gotta Go Fast Escape within 10 minutes.

Determined Don't use any hints to finish the game.

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

The New Fort Knox Gain 1500 gold bullion

Alright, Alright Survive until round 10 in Infection.

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

Hard pressed Complete all levels on Hard

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

You Can Pet The Dog Pet a Hellhound in MWZ

Chatterbox Sometimes, after you've found a discovery point or when you're at a save point, you have the opportunity to press L3 to initiate a conversation between your companions. This is proof that you've experienced many Things and had a lot of Opinions about them.

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

Survivor Survive until Round 25 in Outbreak.

Tycoon Complete the GFO Oil Rig mission.

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

Wish Upon A Star Complete Sofia's story

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

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

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

Mode master Win an online game of every mode in every difficulty at least once.

Supernova Get 3 stars on each of the first 14 Echoes

Like a glove… Finish trial #6 with 3 hearts left without picking up a spell.

Boat Cruise Clear Stage 9 while on the Suisui Boat.

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

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

Golden Idol Perform every Single Player Skillshot in the game

Insomniac Don't sleep for two days and nights.

Firestarter Get jailed in Skalitz.

That Party was Ace Ace every Adventure level in The Journey Home.

Collector Loot 10 Superior or Custom items.

House Drawings Collect all drawings in the house

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

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

Think fast! Finish trial #8 with at least 52 seconds left on the clock.

Save some room Finish trial #20 one unit below the zapper.

Closing the Book Defeated the redscale dragon from the Book of Apocalypse.

The Postman Delivered the journal to Lucien.

High Wire Act Kill 10 enemies while using a zipline

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

Chapter 9 Speedrun Complete a Speedrun of Chapter 9 below the target time.

Insanity III Complete all three games in Mass Effect Legendary Edition on Insanity without changing difficulty

Mission Complete Clear every stage.