Portal 2 — Overachiever

Door Prize

Examine all the vitrified test chamber doors

Unlocked: 2017-06-21

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Tater Tote

Carry science forward

Unlocked: 2017-06-21

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Vertically Unchallenged

Master the Repulsion Gel

Unlocked: 2017-06-20

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SaBOTour

Make a break for it

Unlocked: 2016-07-08

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Bridge Over Troubling Water

Complete the first Hard Light Bridge test

Unlocked: 2016-07-07

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High Five

Celebrate your cooperative calibration success

Unlocked: 2019-03-31

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Undiscouraged

Complete the first Thermal Discouragement Beam test

Unlocked: 2016-07-06

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Scanned Alone

Stand in a defective turret detector

Unlocked: 2016-07-08

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Ship Overboard

Discover the missing experiment

Unlocked: 2017-06-21

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Stranger Than Friction

Master the Propulsion Gel

Unlocked: 2017-06-22

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Portrait of a Lady

Find a hidden portrait

Unlocked: 2017-06-21

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Good Listener

Take GLaDOS' escape advice

Unlocked: 2016-07-08

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Stalemate Associate

Press the button!

Unlocked: 2016-07-08

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Wake Up Call

Survive the manual override

Unlocked: 2016-07-05

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Team Building

Complete all test chambers in the Team Building co-op course

Unlocked: 2019-03-31

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You Monster

Reunite with GLaDOS

Unlocked: 2016-07-05

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White Out

Complete the first Conversion Gel test

Unlocked: 2017-06-22

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Drop Box

Place a cube on a button without touching the cube

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Smash TV

Break 11 test chamber monitors

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Schrodinger's Catch

Catch a blue-painted box before it touches the ground

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Final Transmission

Find the hidden signal in one of the Rat Man's dens

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Pit Boss

Show that pit who's boss

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You Made Your Point

Refuse to solve the first test in Chapter 8

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Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course

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Four Ring Circus

Enter 4 different portals without touching the ground in co-op

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Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course

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Pturretdactyl

Use an Aerial Faith Plate to launch a turret

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Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

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Confidence Building

Complete all test chambers in the Mass and Velocity co-op course

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You Saved Science

Complete all test chambers in all courses of co-op

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Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course

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Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them

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Party of Three

Find the hidden companion cube in co-op test chamber

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Narbacular Drop

Place a portal under your co-op partner while they are gesturing

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Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row

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Preservation of Mass

Break the rules in Test Chamber 07

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No Hard Feelings

Save a turret from redemption

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Lunacy

That just happened

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Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each

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Overclocker

Complete Test Chamber 10 in 70 seconds

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Friends List With Benefits

While playing co-op, hug 3 different people on your friends list

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Still Alive

Complete Course 4 with neither you nor your co-op partner dying

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Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course

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Gesticul-8

Perform all 8 gestures of your own volition in co-op

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Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses

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Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before

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Tunnel of Funnel

Master the Excursion Funnel

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Dual Pit Experiment

Do the same test twice

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The Part Where He Kills You

This is that part

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Air Show

Perform 2 aerial gestures before touching the ground in co-op

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Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op

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🏆 Portal 2