You guys might already be aware of this but the Turbografx / PC Engine face buttons are not mapped according to this link: https://github.com/RetroPie/RetroPie-Setup/wiki/PC-Engine . Instead Y is mapped to the ‘I’ button and B to the ‘II’ button, requiring some unconventional remapping of the buttons on a SNES controller in order use the buttons you want.
Just thought I should mention this and thanks so much for all your work!!
I only changed the image to match the core mapping of the emulator not the other way around. The core button mappings are hard coded on retroarch’s end, we don’t have anything to do with how the core emulator buttons are mapped, that’s retroarch’s deal.