Razed to the Ground!
Destroy all the buildings in a junction in any single event (Super Feature doesn’t count!)
1/29/2012
4:32:04 PM
Rare 12.0%
Birdie
Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.
1/27/2012
4:27:41 PM
Rare 29.2%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
1/27/2012
2:55:37 PM
Ultra Rare 2.8%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
1/27/2012
2:09:36 PM
Ultra Rare 1.8%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
1/27/2012
1:57:32 PM
Ultra Rare 2.1%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
1/27/2012
11:52:49 AM
Very Rare 6.0%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
1/27/2012
11:31:44 AM
Very Rare 5.5%
Party of Three
Find the hidden companion cube in co-op test chamber
1/27/2012
11:25:40 AM
Ultra Rare 2.9%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
1/27/2012
10:59:23 AM
Ultra Rare 3.9%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
1/26/2012
8:17:14 PM
Ultra Rare 4.6%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
1/26/2012
8:12:40 PM
Very Rare 7.9%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
1/26/2012
4:55:05 PM
Rare 15.7%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
1/26/2012
10:44:48 AM
Rare 20.6%
Fidelity, Bravery, Integrity and Madness
Completed the case and saw into the maw of madness.
1/22/2012
7:09:44 PM
Rare 22.1%