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11 of 51 (22%) Achievements Earned::

Personal Achievements
 

High Five

Celebrate your cooperative calibration success
Unlocked 24 Jun @ 3:29am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 24 Jun @ 3:54am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 24 Jun @ 5:15am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 24 Jun @ 6:59am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 13 Jul @ 4:01am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 25 Jun @ 9:23am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 25 Jun @ 10:29am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 24 Jun @ 4:00am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 24 Jun @ 5:53am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 3 Jul @ 2:13am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 13 Jul @ 4:05am



Wake Up Call

Survive the manual override

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

Pturretdactyl

Use an Aerial Faith Plate to launch a turret

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

You Saved Science

Complete all test chambers in all courses of co-op

Can't Touch This

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

Empty Gesture

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

Party of Three

Find the hidden companion cube in co-op test chamber

Narbacular Drop

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

Professor Portal

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

Four Ring Circus

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

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