Portal 2

Achievements

1. 
   Wake Up Call Survive the manual override
   Locked 74.0 %
2. 
   You Monster Reunite with GLaDOS
   Locked 64.7 %
3. 
   Undiscouraged Complete the first Thermal Discouragement Beam test
   Locked 62.6 %
4. 
   High Five Celebrate your cooperative calibration success
   Locked 58.5 %
5. 
   Bridge Over Troubling Water Complete the first Hard Light Bridge test
   Locked 53.2 %
6. 
   Team Building Complete all test chambers in the Team Building co-op course
   Locked 49.4 %
7. 
   SaBOTour Make a break for it
   Locked 46.5 %
8. 
   Stalemate Associate Press the button!
   Locked 45.5 %
9. 
   Vertically Unchallenged Master the Repulsion Gel
   Locked 42.8 %
10. 
    Tater Tote Carry science forward
    Locked 40.9 %
11. 
    Confidence Building Complete all test chambers in the Mass and Velocity co-op course
    Locked 40.9 %
12. 
    Stranger Than Friction Master the Propulsion Gel
    Locked 39.3 %
13. 
    White Out Complete the first Conversion Gel test
    Locked 38.2 %
14. 
    Dual Pit Experiment Do the same test twice
    Locked 36.9 %
15. 
    Tunnel of Funnel Master the Excursion Funnel
    Locked 35.1 %
16. 
    Scanned Alone Stand in a defective turret detector
    Locked 34.7 %
17. 
    The Part Where He Kills You This is that part
    Locked 34.4 %
18. 
    Lunacy That just happened
    Locked 34.1 %
19. 
    Air Show Perform 2 aerial gestures before touching the ground in co-op
    Locked 33.2 %
20. 
    Bridge Building Complete all test chambers in the Hard-Light Surfaces co-op course
    Locked 32.0 %
21. 
    No Hard Feelings Save a turret from redemption
    Locked 31.0 %
22. 
    Drop Box Place a cube on a button without touching the cube
    Locked 28.9 %
23. 
    Good Listener Take GLaDOS' escape advice
    Locked 28.3 %
24. 
    Gesticul-8 Perform all 8 gestures of your own volition in co-op
    Locked 27.0 %
25. 
    Obstacle Building Complete all test chambers in the Excursion Funnels co-op course
    Locked 26.3 %
26. 
    Preservation of Mass Break the rules in Test Chamber 07
    Locked 24.4 %
27. 
    You Saved Science Complete all test chambers in all courses of co-op
    Locked 21.2 %
28. 
    Portrait of a Lady Find a hidden portrait
    Locked 11.6 %
29. 
    Ship Overboard Discover the missing experiment
    Locked 10.7 %
30. 
    Can't Touch This Dance in front of a turret blocked by a hard light bridge in co-op
    Locked 9.8 %
31. 
    Rock Portal Scissors Win 3 co-op games of rock-paper-scissors in a row
    Locked 9.8 %
32. 
    Asking for Trouble Taunt GLaDOS in front of a camera in each of the five co-op courses
    Locked 8.9 %
33. 
    Pturretdactyl Use an Aerial Faith Plate to launch a turret
    Locked 8.7 %
34. 
    Pit Boss Show that pit who's boss
    Locked 7.9 %
35. 
    Door Prize Examine all the vitrified test chamber doors
    Locked 7.2 %
36. 
    Schrodinger's Catch Catch a blue-painted box before it touches the ground
    Locked 6.9 %
37. 
    Four Ring Circus Enter 4 different portals without touching the ground in co-op
    Locked 6.8 %
38. 
    You Made Your Point Refuse to solve the first test in Chapter 8
    Locked 6.5 %
39. 
    Professor Portal After completing co-op, complete Calibration Course online with a friend who hasn’t played before
    Locked 5.9 %
40. 
    Narbacular Drop Place a portal under your co-op partner while they are gesturing
    Locked 5.8 %
41. 
    Final Transmission Find the hidden signal in one of the Rat Man's dens
    Locked 5.4 %
42. 
    Empty Gesture Drop your co-op partner in goo while they are gesturing by removing the bridge under them
    Locked 4.6 %
43. 
    Friends List With Benefits While playing co-op, hug 3 different people on your friends list
    Locked 4.5 %
44. 
    Overclocker Complete Test Chamber 10 in 70 seconds
    Locked 4.0 %
45. 
    Smash TV Break 11 test chamber monitors
    Locked 3.7 %
46. 
    Iron Grip Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
    Locked 3.6 %
47. 
    Party of Three Find the hidden companion cube in co-op test chamber
    Locked 3.5 %
48. 
    Triple Crown Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
    Locked 3.0 %
49. 
    Portal Conservation Society Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
    Locked 2.8 %
50. 
    Talent Show Never lose a cube in Chamber 6 of the Mobility Gels co-op course
    Locked 2.6 %
51. 
    Still Alive Complete Course 4 with neither you nor your co-op partner dying
    Locked 2.4 %