50Achievements
Portal 2
Wake Up Call
Survive the manual override
(70.5%)
Portal 2
You Monster
Reunite with GLaDOS
(63.3%)
Portal 2
Undiscouraged
Complete the first Thermal Discouragement Beam test
(61.3%)
Portal 2
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
(51.6%)
Portal 2
SaBOTour
Make a break for it
(44.2%)
Portal 2
Stalemate Associate
Press the button!
(43.5%)
Portal 2
Tater Tote
Carry science forward
(38.8%)
Portal 2
Vertically Unchallenged
Master the Repulsion Gel
(40.8%)
Portal 2
Stranger Than Friction
Master the Propulsion Gel
(37.3%)
Portal 2
White Out
Complete the first Conversion Gel test
(36.2%)
Portal 2
Tunnel of Funnel
Master the Excursion Funnel
(32.8%)
Portal 2
Dual Pit Experiment
Do the same test twice
(34.7%)
Portal 2
The Part Where He Kills You
This is that part
(32.0%)
Portal 2
Lunacy
That just happened
(31.6%)
Portal 2
Drop Box
Place a cube on a button without touching the cube
(22.9%)
Portal 2
Overclocker
Complete Test Chamber 10 in 70 seconds
(5.5%)
Portal 2
Pit Boss
Show that pit who's boss
(9.6%)
Portal 2
Preservation of Mass
Break the rules in Test Chamber 07
(22.7%)
Portal 2
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
(10.3%)
Portal 2
Final Transmission
Find the hidden signal in one of the Rat Man's dens
(8.0%)
Portal 2
Good Listener
Take GLaDOS' escape advice
(27.4%)
Portal 2
Scanned Alone
Stand in a defective turret detector
(35.5%)
Portal 2
No Hard Feelings
Save a turret from redemption
(28.0%)
Portal 2
Schrodinger's Catch
Catch a blue-painted box before it touches the ground
(7.5%)
Portal 2
Ship Overboard
Discover the missing experiment
(11.9%)
Portal 2
Door Prize
Examine all the vitrified test chamber doors
(8.3%)
Portal 2
Portrait of a Lady
Find a hidden portrait
(11.8%)
Portal 2
You Made Your Point
Refuse to solve the first test in Chapter 8
(9.3%)
Portal 2
Smash TV
Break 11 test chamber monitors
(4.2%)
Portal 2
High Five
Celebrate your cooperative calibration success
(62.0%)
Portal 2
Team Building
Complete all test chambers in the Team Building co-op course
(53.4%)
Portal 2
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
(37.3%)
Portal 2
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
(25.3%)
Portal 2
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
(20.0%)
Portal 2
You Saved Science
Complete all test chambers in all courses of co-op
(15.9%)
Portal 2
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
(4.0%)
Portal 2
Gesticul-8
Perform all 8 gestures of your own volition in co-op
(21.5%)
Portal 2
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
(11.4%)
Portal 2
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
(7.1%)
Portal 2
Party of Three
Find the hidden companion cube in co-op test chamber
(4.4%)
Portal 2
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
(9.3%)
Portal 2
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
(1.9%)
Portal 2
Air Show
Perform 2 aerial gestures before touching the ground in co-op
(23.2%)
Portal 2
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
(2.9%)
Portal 2
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
(6.6%)
Portal 2
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
(2.4%)
Portal 2
Still Alive
Complete Course 4 with neither you nor your co-op partner dying
(1.6%)
Portal 2
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
(8.5%)
Portal 2
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
(15.1%)
Portal 2
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list
(1.7%)