How Speedrunners Skip (almost) Half of Portal 2 Coop
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How Speedrunners Skip The Turret Assembly Line
27:02
Portal 2's Toughest Speedrun was Finally Solved - World Record History of Ceiling Catapult
11:38
Can I Use Exploits To Beat Speedrunners? - Learn To Fly 2 IS PERFECTLY BALANCED
31:16
SNIPERS: A Nightmare for Developers and Players
23:25
The Darker SECRET Experiments of Aperture | Test Shaft 09 | FULL Portal Lore
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How Speedrunners Beat Hollow Knight In 30 Minutes
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Game Theory: Can You Solve Portal's IMPOSSIBLE Puzzle? (Portal)
13:01