Portal 2

26 of 51 ach. unlocked (51%)
Yupei's achievements in Portal 2
Perform 2 aerial gestures before touching the ground in co-op
Jun 12, 11
Complete the first Hard Light Bridge test
Jun 12, 11
Complete all test chambers in the Mass and Velocity co-op course
Jun 12, 11
Place a cube on a button without touching the cube
Nov 6, 11
Do the same test twice
Jul 13, 11
Enter 4 different portals without touching the ground in co-op
Nov 6, 11
Take GLaDOS' escape advice
Jun 16, 11
Celebrate your cooperative calibration success
Jun 12, 11
That just happened
Jul 14, 11
Place a portal under your co-op partner while they are gesturing
Jul 14, 11
Save a turret from redemption
Jun 12, 11
Show that pit who's boss
Jul 14, 11
Break the rules in Test Chamber 07
Jun 16, 11
Win 3 co-op games of rock-paper-scissors in a row
Jul 14, 11
Make a break for it
Jun 12, 11
Stand in a defective turret detector
Jun 12, 11
Press the button!
Jun 12, 11
Master the Propulsion Gel
Jul 13, 11
Carry science forward
Jun 13, 11
Complete all test chambers in the Team Building co-op course
Jul 5, 11
This is that part
Jul 14, 11
Master the Excursion Funnel
Jul 14, 11
Complete the first Thermal Discouragement Beam test
Jun 12, 11
Master the Repulsion Gel
Jun 12, 11
Survive the manual override
Jun 12, 11
Reunite with GLaDOS
Jun 12, 11
Taunt GLaDOS in front of a camera in each of the five co-op courses
Locked
Complete all test chambers in the Hard-Light Surfaces co-op course
Locked
Dance in front of a turret blocked by a hard light bridge in co-op
Locked
Examine all the vitrified test chamber doors
Locked
Drop your co-op partner in goo while they are gesturing by removing the...
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
Perform all 8 gestures of your own volition in co-op
Locked
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Locked
Complete all test chambers in the Excursion Funnels co-op course
Locked
Complete Test Chamber 10 in 70 seconds
Locked
Find the hidden companion cube in co-op test chamber
Locked
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total...
Locked
Find a hidden portrait
Locked
After completing co-op, complete Calibration Course online with a friend who...
Locked
Use an Aerial Faith Plate to launch a turret
Locked
Catch a blue-painted box before it touches the ground
Locked
Discover the missing experiment
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
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Locked
Complete the first Conversion Gel test
Locked
Refuse to solve the first test in Chapter 8
Locked
Complete all test chambers in all courses of co-op
Locked
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