Science Coop - Topic

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Coldplay - The Scientist (Official 4K Video) Coldplay

1.3B views - 14 years ago

Aperture Investment Opportunity #2: "Bot Trust" Valve

4.3M views - 14 years ago

Testing Still Continues angle - Topic

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Portal 2 - Full Co-op Trailer Valve

5.4M views - 15 years ago

Portal 2 Soundtrack - Ready For Testing (Co-Op Trailer) Trickiert

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Still Alive Aperture Science Psychoacoustic Laboratories - Topic

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Portal 2 [Co-op] // Part 1 // Scissor Science - HowDoGame? HowDoGame?

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Portal 2 Co-Op Ending Song "Robots FTW" Jimmy Liu

368.5K views - 14 years ago

What's Outside angle - Topic

723 views - just now

Portal 2 Soundtrack - Reconstructing Science (Trailer Music) Trickiert

14 years ago

Portal 2 Co-op Intro Valve

1.7M views - 15 years ago

Cracks Between the Science angle - Topic

825 views - just now

Portal 2 OST Volume 2 - Halls Of Science 4 KniL

483.1K views - 14 years ago

Portal 2 OST Volume 2 - You Will Be Perfect KniL

1.2M views - 14 years ago

Aperture Investment Opportunity #1: "Panels" Valve

3.7M views - 14 years ago

Portal 2 Perpetual Testing Initiative Valve

3.2M views - 13 years ago

If Portal 2 was a Rhythm Game (Synchronized Music Map) DoodleChaos

7.6M views - 6 years ago

.Pov: You're back at Aperture science`• playlist ×C r e p e`•

671 views - 4 years ago

A Simulated Science angle - Topic

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The Cooperative Testing Branch angle - Topic

523 views - just now

Portal 2 Launch TV Ad Valve

3.2M views - 14 years ago

Portal 2 OST Volume 3 - Reconstructing More Science KniL

2.5M views - 14 years ago

Portal 2: End Credits Song 'Want You Gone' by Jonathan Coulton [1080p HD] TheMediaCows

26.7M views - 14 years ago

Earthquake Coop - Topic

13.4K views - just now