| Game |
Achievement |
TA |
GS |
Ratio |
Won |
Sol |
 |
 |
 |
Professor PortalAfter completing co-op, complete Calibration Course online with a friend who hasn’t played before |
167 |
(75) |
2.23 |
19 May 13 | 
|
|
|
 |
Friends List With BenefitsWhile playing co-op, hug 3 different people on your friends list |
115 |
(50) |
2.31 |
19 May 13 |
|
|
|
 |
You Saved ScienceComplete all test chambers in all courses of co-op |
145 |
(100) |
1.45 |
18 May 13 |
|
|
|
 |
Asking for TroubleTaunt GLaDOS in front of a camera in each of the five co-op courses |
16 |
(10) |
1.62 |
18 May 13 |
|
|
|
 |
Obstacle BuildingComplete all test chambers in the Excursion Funnels co-op course |
21 |
(15) |
1.40 |
18 May 13 |
|
|
|
 |
Still AliveComplete Course 4 with neither you nor your co-op partner dying |
35 |
(15) |
2.31 |
18 May 13 |
|
|
|
 |
Party of ThreeFind the hidden companion cube in co-op test chamber |
44 |
(25) |
1.77 |
18 May 13 |
|
|
|
 |
Gesticul-8Perform all 8 gestures of your own volition in co-op |
21 |
(15) |
1.39 |
18 May 13 |
|
|
|
 |
Air ShowPerform 2 aerial gestures before touching the ground in co-op |
27 |
(20) |
1.35 |
18 May 13 |
|
|
|
 |
Bridge BuildingComplete all test chambers in the Hard-Light Surfaces co-op course |
20 |
(15) |
1.34 |
17 May 13 |
|
|
|
 |
Can't Touch ThisDance in front of a turret blocked by a hard light bridge in co-op |
15 |
(10) |
1.47 |
17 May 13 |
|
|
|
 |
Portal Conservation SocietyComplete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
37 |
(20) |
1.86 |
17 May 13 |
|
|
|
 |
Empty GestureDrop your co-op partner in goo while they are gesturing by removing the bridge under them |
39 |
(25) |
1.55 |
17 May 13 |
|
|
|
 |
Confidence BuildingComplete all test chambers in the Mass and Velocity co-op course |
12 |
(10) |
1.25 |
17 May 13 |
|
|
|
 |
Iron GripNever lose a cube in Chamber 6 of the Mass and Velocity co-op course |
36 |
(20) |
1.82 |
17 May 13 |
|
|
|
 |
Triple CrownSolve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
30 |
(15) |
2.03 |
17 May 13 |
|
|
|
 |
Team BuildingComplete all test chambers in the Team Building co-op course |
12 |
(10) |
1.17 |
16 May 13 |
|
|
|
 |
Rock Portal ScissorsWin 3 co-op games of rock-paper-scissors in a row |
27 |
(20) |
1.36 |
16 May 13 |
|
|
|
 |
Four Ring CircusEnter 4 different portals without touching the ground in co-op |
42 |
(25) |
1.68 |
16 May 13 |
|
|
|
 |
Narbacular DropPlace a portal under your co-op partner while they are gesturing |
35 |
(25) |
1.42 |
16 May 13 |
|
|
|
 |
High FiveCelebrate your cooperative calibration success |
6 |
(5) |
1.13 |
16 May 13 |
|
|
|
 |
LunacyThat just happened |
24 |
(20) |
1.18 |
15 May 13 |
|
|
|
 |
Pit BossShow that pit who's boss |
44 |
(30) |
1.46 |
15 May 13 |
|
|
|
 |
The Part Where He Kills YouThis is that part |
24 |
(20) |
1.18 |
15 May 13 |
|
|
|
 |
Smash TVBreak 11 test chamber monitors |
126 |
(75) |
1.68 |
15 May 13 |
|
|
|
 |
Tunnel of FunnelMaster the Excursion Funnel |
18 |
(15) |
1.17 |
15 May 13 |
|
|
|
 |
Dual Pit ExperimentDo the same test twice |
17 |
(15) |
1.16 |
14 May 13 |
|
|
|
 |
You Made Your PointRefuse to solve the first test in Chapter 8 |
14 |
(10) |
1.42 |
14 May 13 |
|
|
|
 |
White OutComplete the first Conversion Gel test |
17 |
(15) |
1.16 |
14 May 13 |
|
|
|
 |
Stranger Than FrictionMaster the Propulsion Gel |
17 |
(15) |
1.15 |
14 May 13 |
|
|
|
 |
Portrait of a LadyFind a hidden portrait |
14 |
(10) |
1.44 |
14 May 13 |
|
|
|
 |
Tater ToteCarry science forward |
17 |
(15) |
1.14 |
14 May 13 |
|
|
|
 |
Ship OverboardDiscover the missing experiment |
14 |
(10) |
1.45 |
14 May 13 |
|
|
|
 |
Door PrizeExamine all the vitrified test chamber doors |
30 |
(20) |
1.52 |
14 May 13 |
|
|
|
 |
Schrodinger's CatchCatch a blue-painted box before it touches the ground |
30 |
(20) |
1.52 |
14 May 13 |
|
|
|
 |
Vertically UnchallengedMaster the Repulsion Gel |
17 |
(15) |
1.13 |
14 May 13 |
|
|
|
 |
Stalemate AssociatePress the button! |
17 |
(15) |
1.12 |
13 May 13 |
|
|
|
 |
Scanned AloneStand in a defective turret detector |
6 |
(5) |
1.17 |
13 May 13 |
|
|
|
 |
No Hard FeelingsSave a turret from redemption |
13 |
(10) |
1.25 |
13 May 13 |
|
|
|
 |
Good ListenerTake GLaDOS' escape advice |
6 |
(5) |
1.25 |
13 May 13 |
|
|
|
 |
SaBOTourMake a break for it |
11 |
(10) |
1.11 |
13 May 13 |
|
|
|
 |
Bridge Over Troubling WaterComplete the first Hard Light Bridge test |
11 |
(10) |
1.09 |
13 May 13 |
|
|
|
 |
OverclockerComplete Test Chamber 10 in 70 seconds |
47 |
(30) |
1.56 |
13 May 13 |
|
|
|
 |
Preservation of MassBreak the rules in Test Chamber 07 |
25 |
(20) |
1.27 |
13 May 13 |
|
|
|
 |
PturretdactylUse an Aerial Faith Plate to launch a turret |
7 |
(5) |
1.45 |
13 May 13 |
|
|
|
 |
Final TransmissionFind the hidden signal in one of the Rat Man's dens |
30 |
(20) |
1.48 |
13 May 13 |
|
|
|
 |
Drop BoxPlace a cube on a button without touching the cube |
26 |
(20) |
1.29 |
13 May 13 |
|
|
|
 |
UndiscouragedComplete the first Thermal Discouragement Beam test |
11 |
(10) |
1.06 |
13 May 13 |
|
|
|
 |
You MonsterReunite with GLaDOS |
5 |
(5) |
1.05 |
13 May 13 |
|
|
|
 |
Wake Up CallSurvive the manual override |
5 |
(5) |
1.04 |
13 May 13 |
|
|