Pro Speedrunner gets HUMBLED by Custom Portal 2 Levels

My first attempt at a "random testing initiative" Portal 2 run. ►Streamed live at Twitch:   / msushi   ►Main Channel:    / @msushi   ►Second Channel:    / @m2ushi   ►Twitter:   / msushi_   ►Bluesky: https://bsky.app/profile/msushi.net Originally streamed 2026/08/10