Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
3/27/2013
1:09:09 AM
Ultra Rare 2.1%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
3/27/2013
1:02:50 AM
Ultra Rare 3.9%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
3/27/2013
12:32:40 AM
Very Rare 5.5%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
3/25/2013
4:07:58 AM
Rare 31.6%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
3/25/2013
2:45:25 AM
Very Rare 7.9%
Mother Goose
Saved your first Little Sister in a non-private match.
3/22/2013
2:09:59 AM
Ultra Rare 4.9%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
3/19/2013
6:58:28 PM
Rare 20.6%
Team Building
Complete all test chambers in the Team Building co-op course
3/19/2013
6:46:40 PM
Rare 46.8%
Schrodinger's Catch
Catch a blue-painted box before it touches the ground
3/19/2013
1:35:44 AM
Very Rare 6.9%
Final Transmission
Find the hidden signal in one of the Rat Man's dens
3/18/2013
5:08:23 PM
Very Rare 7.7%
