You Saved Science
Uncommon16.5%StoryMulti-player
Co-operative
Complete all test chambers in all courses of co-op
Complete every chamber in all five co-op courses - the full co-op campaign. Clearing Team Building, Mass and Velocity, Hard-Light Surfaces, Excursion Funnels and Mobility Gels gets you here. This is the co-op completion pop; if you've finished the campaign with a partner, it's automatic.