This is not a stock RetroPie image/installation - I advise you to ask the author of the image/scripts for help, since we don't know how those extra scripts work.
Depends on the light gun setup I suppose. It is a niche extra, for example I use a dolphin bar with a wiimote, that's presumably a very different setup process to the sinden light gun
One last Q: I have a acrylic sheet in front of my monitor by way of protection, this has a "bit" of reflection naturally. Would this impact the experience in any way?
Hello, does it work for you or is it inconvenient? in my I have an arcade booth and I have a glass in front of the screen
I have to say it works fine. No problems whatsoever with reflections and so on.
Hello. In regards to the light gun games you have on your Rpi4... Are the arcade games listed the arcade versions? Like Terminator 2 or Time Crisis? Or are the port versions?
@g30ff the drive is just a script that boots a service, but yep tried that ... and also working with Sinden too .. but since this was such a needle, was hoping there was some known mouse issues lingering that could help me pinpoint a resultion