I cannot figure out what's happening with btn(). It seems totally random. I made this cart so you can see. I thought it was supposed to imitate PICO-8's btn() function, but that's clearly not happening.
Also, if anyone knows how to get data from different controllers, please share. Usually I would do something like btn(btn_num, controller_num) but with btn() acting the way it is... 🤷😂