Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
5/11/2017
2:09:05 AM
Ultra Rare 1.8%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
5/11/2017
2:00:59 AM
Ultra Rare 2.1%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
5/11/2017
1:48:20 AM
Ultra Rare 2.8%
Party of Three
Find the hidden companion cube in co-op test chamber
5/11/2017
1:43:35 AM
Ultra Rare 2.9%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
5/11/2017
1:31:30 AM
Ultra Rare 4.6%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
5/11/2017
1:26:56 AM
Very Rare 5.5%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
5/10/2017
11:57:34 PM
Very Rare 6.0%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
5/10/2017
11:47:11 PM
Rare 15.7%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
5/10/2017
10:31:12 PM
Rare 20.6%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
5/10/2017
10:05:53 PM
Very Rare 7.9%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
5/10/2017
9:40:19 PM
Ultra Rare 3.9%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
5/10/2017
9:38:31 PM
Rare 31.6%
Silent and Void
There is a thing confusedly formed,
Born before heaven and earth.
Silent and void
It stands alone and does not change,
Goes round and does not weary.
It is capable of being the mother of the world,
But I know not its name.
5/10/2017
8:55:40 PM
Rare 15.8%
The Circular Ruins
Does it exist within the heart of a stone? Did I see it when I saw all things and then forget it?
5/10/2017
8:33:25 PM
Rare 15.8%