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Wake Up Call

Escape the Aperture Science Extended Relaxtion Center and enter the testing facility.

You Monster

Reboot GLaDOS.


Complete the first Thermal Discouragement Beam test.

Bridge Over Troubling Water

Complete the first Hard Light Bridge test.


Escape with Wheatley.

Stalemate Associate

Press the button.

Vertically Unchallenged

Complete all tests using the Repulsion Gel in the abandoned facility.

Tater Tote

Carry GLaDOS back to the surface to stop Wheatley.

Stranger Than Friction

Complete all tests using the Propulsion Gel in the abandoned facility.

White Out

Complete the first Conversion Gel test.

Dual Pit Experiment

Complete the first test Wheatley gives you twice.

Tunnel of Funnel

Master the Excursion Funnel during Wheatley's tests.

The Part Where He Kills You

Escape Wheatley's surprise.


Defeat Wheatley.

Scanned Alone

Stand in the turret detector.

High Five

Complete the Cooperative Calibration test and celebrate with a high five.

Team Building

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

No Hard Feelings

Save a lone turret from the incinerator in the turret redemption part of the facility in Chapter 5.

Good Listener

Finish the last test while escaping with Wheatley in Chapter 4.

Preservation of Mass

Rescue the Companion Cube from loneliness in test chamber 7.

Confidence Building

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

Bridge Building

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

Drop Box

Place a cube on a button without touching the cube in test chamber 6 in Chapter 2.

Air Show

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


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

Obstacle Building

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

You Saved Science

Complete all test chambers in all courses of co-op.

Portrait of a Lady

Find the hidden portrait.

Ship Overboard

Discover the missing experiment

Can't Touch This

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

You Made Your Point

Refuse to solve the first test in Chapter 8.

Door Prize

Examine all the vitrified test chamber doors in Chapter 6.


Use an Aerial Faith Plate to launch a turret.

Rock Portal Scissors

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

Pit Boss

Show that pit who's boss!

Asking for Trouble

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

Final Transmission

Find the hidden signal in one of the Rat Man's dens in test chamber 6 in Chapter 2.

Schrodinger's Catch

Catch a blue-painted box before it touches the ground in Chapter 6.

Narbacular Drop

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


Complete Test Chamber 10 in 70 seconds in Chapter 3.

Empty Gesture

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

Four Ring Circus

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

Smash TV

Break 11 of Wheatley's test chamber monitors.

Party of Three

Find the hidden companion cube in the Excursion Funnel Course, test chamber 9.

Iron Grip

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

Portal Conservation Society

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

Triple Crown

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

Professor Portal

After completing co-op, complete the Calibration Course online with a friend who hasn�t played before.

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list in a co-op game.

Still Alive

Complete the Excursion Funnels co-op course with neither you nor your co-op partner dying.