Portal 2's Most Broken Glitch
10:41
Portal 2 Speedrunners Accidentally Discover Invincibility Glitch
8:36
These 12 Speedrun World Records were DISQUALIFIED
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I Made Portal 3 Because Valve Wouldn't
23:25
The Darker SECRET Experiments of Aperture | Test Shaft 09 | FULL Portal Lore
16:13
Out of Bounds Secrets | Portal - Boundary Break
13:01
Portal Speedrunners Found An In-Game Aimbot (And It's Not Cheating...)
10:41
Portal 2's Unluckiest Speedrun
9:30