CM3 sitting on my shelf

[Lanium]

Setting arcade emulation in retropie (the software used in the cm3) requires specific emulators be used and specific rom set.

Please see this link for assistance.

https://retropie.org.uk/docs/Arcade/

While it might be nice to have an image that is ready to go for your specific needs that doesn’t really meet anyone else's needs. This project does provide the image changes that allow the hardware to work and the software to be updated.

Once you get your CM3 setup the way you like it, make sure to backup the image and keep it for your needs.