Does anyone know how to make one of these overlays compatible with a USB gamepad replica of a NES controller? I've had issues and I am at a loss as for what to do.

I just realized I didn’t link my FAQ when I transferred my skins to itch. Hoping this guide helps: https://proximitysound.com/skins/usb/

I know for me the d-pad was mapped to x/y values on my SNES USB Clone controller.