Round Heels
At the Bamba Club, get Dick McColl to give up the license plate of Celine Henry's male companion.
5/21/2011
10:04:09 AM
Common 54.6%
Stab-Rite
At Ray's Cafe, find the bloodstained knife on your first sweep of the crime scene.
5/20/2011
9:48:15 PM
Common 50.5%
The Straight Dope
Use evidence to prove a lie as an LAPD Detective or Investigator.
5/20/2011
8:39:37 PM
Common 72.5%
One For The File
Find and inspect a clue as an LAPD Detective or Investigator.
5/20/2011
8:03:54 PM
Common 81.1%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
5/4/2011
5:51:25 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
5/2/2011
10:32:18 PM
Ultra Rare 2.1%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
5/2/2011
9:49:01 PM
Ultra Rare 4.6%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
5/2/2011
9:43:51 PM
Ultra Rare 2.8%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
5/2/2011
9:16:10 PM
Very Rare 5.5%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
5/2/2011
7:39:25 PM
Ultra Rare 3.9%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
5/2/2011
7:18:49 PM
Very Rare 6.0%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
5/2/2011
7:14:46 PM
Rare 15.7%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
5/2/2011
7:02:36 PM
Very Rare 7.9%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
5/2/2011
5:22:04 PM
Rare 20.6%