I found a lot of secrets (i will post vid later)
BUT,
WHY IS THERE A "???" BUTTON THAT TURNS EVERYTHING INTO COMIC SANS?
YOU MADLADS!!!1!!
Ok the story of this button is simple : we had an empty space in the options menu. It was ugly. We put a button. Well we didn't know what this button would do so we named it "???". And at some point in the making of this game, one of the devs just made it change EVERY TEXTS to use the font comic sans. And that's it, pure randomness ahah.