It's not much but perhaps someone here would find the following Imgur post to be an entertaining read for creative ideas.

https://imgur.com/gallery/FfXHWYR

OK, I reset the default.cfg in mame2003 -folder, now the TAB is working and I can change the

I change the sensitivity in the menu,
seems for Centipede it's not going "faster",
because in Marble Madness or Missile Command the control is running faster after the changes !

Thx!