Portal 2

32 of 51 ach. unlocked (63%)
Twin_Master's achievements in Portal 2
Perform 2 aerial gestures before touching the ground in co-op
May 16, 11
Complete all test chambers in the Hard-Light Surfaces co-op course
Complete the first Hard Light Bridge test
May 16, 11
Dance in front of a turret blocked by a hard light bridge in co-op
May 22, 11
Complete all test chambers in the Mass and Velocity co-op course
May 16, 11
Examine all the vitrified test chamber doors
May 16, 11
Place a cube on a button without touching the cube
May 16, 11
Do the same test twice
Apr 23, 12
Drop your co-op partner in goo while they are gesturing by removing the...
May 22, 11
Enter 4 different portals without touching the ground in co-op
May 16, 11
Perform all 8 gestures of your own volition in co-op
Take GLaDOS' escape advice
May 16, 11
Celebrate your cooperative calibration success
May 16, 11
Save a turret from redemption
May 16, 11
Complete Test Chamber 10 in 70 seconds
May 16, 11
Find a hidden portrait
Feb 9, 12
Break the rules in Test Chamber 07
May 16, 11
Use an Aerial Faith Plate to launch a turret
May 16, 11
Win 3 co-op games of rock-paper-scissors in a row
May 16, 11
Make a break for it
May 16, 11
Stand in a defective turret detector
May 16, 11
Discover the missing experiment
May 16, 11
Press the button!
May 16, 11
Master the Propulsion Gel
Feb 9, 12
Carry science forward
May 22, 11
Complete all test chambers in the Team Building co-op course
May 16, 11
Complete the first Thermal Discouragement Beam test
May 16, 11
Master the Repulsion Gel
May 16, 11
Survive the manual override
May 16, 11
Complete the first Conversion Gel test
Feb 9, 12
Refuse to solve the first test in Chapter 8
Apr 23, 12
Reunite with GLaDOS
May 16, 11
Taunt GLaDOS in front of a camera in each of the five co-op courses
Locked
Find the hidden signal in one of the Rat Man's dens
Locked
While playing co-op, hug 3 different people on your friends list
Locked
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Locked
That just happened
Locked
Place a portal under your co-op partner while they are gesturing
Locked
Complete all test chambers in the Excursion Funnels co-op course
Locked
Find the hidden companion cube in co-op test chamber
Locked
Show that pit who's boss
Locked
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total...
Locked
After completing co-op, complete Calibration Course online with a friend who...
Locked
Catch a blue-painted box before it touches the ground
Locked
Break 11 test chamber monitors
Locked
Complete Course 4 with neither you nor your co-op partner dying
Locked
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Locked
This is that part
Locked
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Locked
Master the Excursion Funnel
Locked
Complete all test chambers in all courses of co-op
Locked
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