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All Stars Beginner Gain a star in any event of 'All Stars'.

High Five Celebrate your cooperative calibration success

Science is done by quantity Extract with at least 15 common samples.

Treadhead - Kill 30 Helghast whilst in the tank Take 30 Helghast lives whilst using the ISA tank

Hell's Forge Gather all the ingots in the Inferno Vault and take them to Hell's Forge.

El Savior Access the alternative ending (collect all orbs)

World Champion Earn a Gold Medal in all Infierno challenges

You spin around Perform your first 1080° (complete the Onboarding sequence)

Don't underestimate the Force Earn a total of 100 kills while playing as a hero (Multiplayer)

Master of Strife Learn all 3 of Strife's Wrath abilities.

Infested Defeat the grub queen in The Maelstrom.

Cardboard Arena Champion Defeat the Tin Robot.

Undertaker - Kill 1000 Helghast Kill 1000 Helghast soldiers

Duke or Dimwit? Defeated all waves in Duke and Dimwit Theater.

We are the Spark Defeat 500 enemies as a hero on any Multiplayer map.

Good Listener Take GLaDOS' escape advice

Sunbreaker Complete "The Sunbreakers' Challenge" quest.

That was Hard Mode? Defeat the game on Hard mode

Ignition Rising Star Unlock additional events in 'Ignition'

The Collector Have a dominated Caragath, Wretched Graug and Spitter Ghûl simultaneously.

Who put these here??? Achieve 100% completion in all areas

Art Connoisseur Obtain 20 pieces of Treasure Art.

Epic Raider Complete a Raid on hard difficulty.

Samples are a diver's best friend Extract with at least 15 rare samples from a mission as a team.

Taffer's Delight Completed Burial at Sea - Episode 2 in 1998 mode.

A Bullet for All Seasons Find all 5 of Strife's elemental ammo types.

Good Deeds Save the uncorrupted angels in Eden Prime.

Play Complete all story levels without dying, with the exception of those levels that only end when you die

Rope-a-Dope In CitC, knock an enemy around the city with Undertow, then knock him off the edge of the city.

Bomb Squad Defuse all bombs in 3 minutes or less

A Few New Tricks Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge

Rooftop Ruffian Defeated all waves in Raven's Dome.

AMG Beginner Gain a star in any event of 'AMG'.

Walking Armory Find all 5 of War's elemental enhancements.

Distinguished Earn 100 Accomplishments

Garbage Collector Collect the Giant Diamond of Inner Earth

Guacamelee! Platinum trophy Luchador #1!

Museum Curator In CitC, unlocked all Gallery items.

Missile Defense System In CitC, killed an enemy with splash damage by shooting a rocket out of the air.

Nightstalker Complete "The Nightstalker's Trail" quest.

Fastest Space Ranger in Town Win the garage race against R.C. Car.

Winging It You've won a LiveRoute event.

No Hard Feelings Save a turret from redemption

Drop Box Place a cube on a button without touching the cube

Professional - 3 revolver headshots in a row Get 3 headshots in a row using the same clip of M4 Revolver ammunition

Where No Duck Has Gone Before Collect the Green Cheese of Longevity

Ready to Blow Destroy all 12 of Moloch's supply caches in War Machine.

Stormcaller Complete "The Stormcaller's Path" quest.

That which does not kill you... Be injured in all limbs at the same time.

Promote Synergy Provide assisted reload for a teammate.