Complete all test chambers in all courses of co-op - Portal 2
Taunt GLaDOS in front of a camera in each of the five co-op courses - Portal 2
Complete all test chambers in the Excursion Funnels co-op course - Portal 2
295/2,010175/1,0007/50
276/276200/20012/12
791/1,550590/1,00027/51