Epic Super Mario Sunshine Glitch

I decided to play around with the rocket nozzle when i accidently used it near the boathouse, and I went through the place where you turn in your blue coins. Then, ALL the buildings disappeared The only things that were visible were the NPCS, and fruits, the gates you break down with the turbo nozzle, several shines, the water, and the manholes. Lemme show you some pictures as to what the hell was going on:












But these are low quality. Here's a video showing what happened. Note that this is NOT my video: