Inkstar | INVISIBLE AIRSTRIP ROOM (Turbo) [Super Mario Sunshine] @Inkstar | Uploaded January 2018 | Updated October 2024, 5 hours ago.
In Delfino Airstrip, there's a (beta) room that's totally invisible that has been only accessed using the F.L.U.D.D's rocket nozzle and 'rocket storage.' But in this video, I'll show you how to access that invisible room with the turbo nozzle! Enjoy!

I've heard that this room has been accessed using the turbo nozzle before by a Japanese speedrunner, but I'm unsure who it was. If anybody knows of the Japanese speedrunner who discovered this method of invisible room access, please let me know who it is in the comment. Thanks!