Portal 2 Speedrunners Accidentally Discover Invincibility Glitch

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Portal speedrunners were just trying to skip a small portion of a cutscene, but they ended up finding an invincibility glitch in the process. How exactly does that happen?

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Music used (in order):
Dustforce OST (@Lifeformed) - Elvish Piper Academy
Cave Story 3D OST - On to Grasstown
Baba Is You OST - Water Is Sink
Dustforce OST (@Lifeformed) - Light Pollution
Ducktales (NES) - The Moon Theme

Videos Referenced: https://pastebin.com/yaNH3Nr5

Thanks to baister09 and Oryn for helping with the video creation process.

This video is not an actual speedrun world record, nor a speedrun tutorial. This video is a showcase of a speedrun strategy that goes in-depth to the various tricks, glitches and bugs that make the strategy possible.