The excursion funnel crouch fly glitch, discovered on release day, is one of Portal 2's most significant glitches used by world record speedrunners. So, how exactly does it work? ►Support me on Patreon: https://www.patreon.com/Msushi ►Twitch: https://www.twitch.tv/msushi ►Twitter: https://twitter.com/Msushi_ ►Second Channel: https://www.youtube.com/c/MsushiRuns Music used (in order): Portal 2 OST - The Part Where He Kills You Portal 2 OST - FrankenTurrets Portal 2 OST - Halls of Science 4 Portal 2 OST - The Part Where He Kills You Ducktales (NES) - The Moon Theme Also, if you're REALLY REALLY interested in a SUPER technical explination of the crouch fly glitch, see this write-up by Krzyhau here: https://docs.google.com/document/d/11tS0yOKfMGSSVMqCBRHgX4FSUWMAJtOC_ID8IHzF2UM/edit#heading=h.i937wt3rdkjd Thanks to @Pr0tal , AttmayMB, Lemmons, and daver12345 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 glitches and bugs that make the strategy possible. #Speedrun #SpeedrunSchool