@mitu thanks for the reply, there does not seems to have any firmware update for the tg16 controller yet...

The dongle seems to shutdown (let blink) like the dongle for my Arcade stick. I will try to see if I can see connect/disconnect in the Linux log for both and see if there is a difference.

@Shizzmoney

The turbo function is build in to the controller just like the original PC Engine.
These can not be mapped for any other function because they are hardwired into the pcb.

@Breadbin As long as the system has 4 working controllers (regardless of how they're connected), it should work. The only possible configuration would be in the emulator options, to enable multi-tap if it's not the default.

@edale

Good to hear. If you get some time, I'm sure it would help others if you could detail the solution you landed on.

Thanks everyone for your help!.... got it running finally.
Turns out it was a (TINY) error in the cue and bin names that i over looked.
GAME ON!!!

turns out my xin mo had some quality issues...

button 9/10 when pressed would disconnect the xin mo... i changed from P0 to P1 to confirm this...they are sending me a new one.

you can try with UXS : https://retropie.org.uk/forum/topic/5291/soft-universal-xml-scraper-v2-easy-scrape-with-high-quality-picture

Great! Glad you got this working correctly!

Yes, what you put between <theme> and </theme> in /etc/emulationstation/es_systems.cfg refers to the corresponding directory in /etc/emulationstation/themes/<CURRENT THEME>/. There is also a theme.xml file in there that it uses to know what graphics to show.

Here's a tutorial to help you create your own ES theme:
https://github.com/retropie/retropie-setup/wiki/Creating-Your-Own-EmulationStation-Theme