Is this person (not sure if you) using a raspberry Pi and then doing
I shall test this…yyyeeeesssss
Nope, doesn’t work like that. He is probably using Serial messages
I found a build video after I posted that: https://youtu.be/nMAjUt-zx9M. I haven’t watched it all the way through, but it looks like he wired a joystick & buttons into the Arduboy.
Or at least mutilation.