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15 of 51 (29%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 15 Feb, 2012 @ 4:43am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 17 Feb, 2012 @ 9:57pm

High Five

Celebrate your cooperative calibration success
Unlocked 15 Feb, 2012 @ 8:00am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 15 Feb, 2012 @ 8:27am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 15 Feb, 2012 @ 11:45pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 17 Feb, 2012 @ 1:03am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 17 Feb, 2012 @ 10:07pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 1 Mar, 2012 @ 7:48am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 17 Feb, 2012 @ 9:39pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 17 Feb, 2012 @ 12:43am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 15 Feb, 2012 @ 11:47pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 17 Feb, 2012 @ 10:05pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 24 Dec, 2023 @ 5:50am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 17 Feb, 2012 @ 9:20pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 17 Feb, 2012 @ 10:10pm



You Monster

Reunite with GLaDOS

Undiscouraged

Complete the first Thermal Discouragement Beam test

Bridge Over Troubling Water

Complete the first Hard Light Bridge test

SaBOTour

Make a break for it

Stalemate Associate

Press the button!

Tater Tote

Carry science forward

Vertically Unchallenged

Master the Repulsion Gel

Stranger Than Friction

Master the Propulsion Gel

White Out

Complete the first Conversion Gel test

Tunnel of Funnel

Master the Excursion Funnel

Dual Pit Experiment

Do the same test twice

The Part Where He Kills You

This is that part

Lunacy

That just happened

Drop Box

Place a cube on a button without touching the cube

Overclocker

Complete Test Chamber 10 in 70 seconds

Pit Boss

Show that pit who's boss

Preservation of Mass

Break the rules in Test Chamber 07

Final Transmission

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

Good Listener

Take GLaDOS' escape advice

Scanned Alone

Stand in a defective turret detector

No Hard Feelings

Save a turret from redemption

Schrodinger's Catch

Catch a blue-painted box before it touches the ground

Ship Overboard

Discover the missing experiment

Door Prize

Examine all the vitrified test chamber doors

Portrait of a Lady

Find a hidden portrait

You Made Your Point

Refuse to solve the first test in Chapter 8

Smash TV

Break 11 test chamber monitors

Iron Grip

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

Narbacular Drop

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

Portal Conservation Society

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

Four Ring Circus

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

Triple Crown

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

Still Alive

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

Rock Portal Scissors

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

Friends List With Benefits

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

Talent Show

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