If you jump when there's something above your head there's no sound effect, but if you jump when there's nothing above your head, it will make a sound effect.

You can click the music note in the top right corner, and the music will restart, so you can kinda use that as a timer of sorts.

Thanks shadow you're the best

Have you guys seen the 2:18 on YouTube? It's kinda insane.

Idk. I think smaller websites run better generally, but I have no idea if that's true