Dual Pit Experiment
Uncommon38.8%ObjectiveOptionalSingle-player
Single Player
Do the same test twice
In Chapter 8, once Wheatley's running the place, he proudly shows off a test he designed himself - a stupidly simple one. Solve it, and he's so chuffed he asks you to do the exact same test again. Do it a second time and this pops - the same test twice.