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For Science! Researched all technologies at least once before the year 2005 in a single game

Give Them Something to Believe Complete New Game Plus

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

I came in like a Resogun Accumulate a total Wrecking combo of 1,000 in Demolition mode

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Toasty Light the marshmallows over the bonfire

Two's Company, Four's a Party Complete any Adventure level with 4 players.

Undiscovered Truths Find all the intel hidden in Nightfall.

Hook, Line and Jumper Enter the compound in "Thermal" without passing through the main gate

Chuck Greene: Cross-dresser? Change into all pieces of clothing in the game

Grave and Growing Free a country.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Distinguished Service Collect 50 Team Boosts.

The Foreman Complete "Factory"

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

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

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

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

Worth Every Penny Acquire 1000 credits in one month.

Off My Planet Recover the Hyperwave Beacon.

A New Hope See all of the endings of Ninja
Scroll of the Demon Blade.

Favorite Clear all missions of any rank consecutively using the same gun parts.

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

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

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.

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

Birdie Using ONLY the golf club, putt the ball in 3 strokes or less

Man No More Build a suit of powered armor.

Hi Score Collect 1,000,000 points over all story levels you have played.

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

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.

Street Fighter Complete all Dragon's Teeth Assignments

Mindful Vandalism Place a sticker or a decoration on another player's sackperson.

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

ARCHIVIST Collect all documents

Head Trauma Use every type of melee weapon on a zombie

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

Peak Performer Win three games as the Mountaineer character

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

Up-Lifting On Monorail Factory, kill all enemies whilst riding the lift

Wrecking Crew Destroy the statue with the bulldozer

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

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

Defending Our Way Of Life Rescue a hideout.

A More Perfect Union Finish what you started.

Back in Action Perform 10 revivals.

Pink Progress Breed 50 pigs

How to Race Friends and Influence People Earn 3 stars in the 'Tristan' Chapter of the 'Born Fast' Horizon Story

Bogey (1 Over Par) Take the alternate route above the cave

36 Challenges This is proof that you've collected all 36 anomalous orbs. You've poked around in every nook and cranny, you've laughed, you've cried, you've questioned your assumptions... But you made it!