Cool game! I made a mistake; scrolling on the menu made a constant clicking sound.
I think it's because scrolling and clicking do the same thing, which also applies when you select a character. If I'm right, the fix would be A) Don't play the clicking sound whenever a button is clicked multiple times, or B) Don't apply scroll-clicking unless you're with an animatronic. It's a minor bug in any case and is kinda funny to me lol.