Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
7/5/2011
3:19:31 PM
Rare 15.7%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
7/3/2011
4:15:36 PM
Rare 20.6%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
7/3/2011
2:57:08 PM
Rare 31.6%
Look at All That Juice
Create and consume all mixed drinks in the game
7/3/2011
11:19:05 AM
Ultra Rare 2.4%
Stick 'em up!
Stick it to a zombie by covering him in weapons and objects!
7/3/2011
10:51:38 AM
Ultra Rare 2.4%
Team Building
Complete all test chambers in the Team Building co-op course
6/29/2011
7:08:24 PM
Rare 46.8%
