For some reason it automatically starts in MSX1 mode, so the MSX2 games won’t work.
I’ve opened every config file I could find, but nowhere is a link to the Bios files it loads.
I also tried to remove “MSX.ROM”, so it would have to start the MSX2 rom, but that only resulted in an error.
If/when its added to the setup script you should be able to update your setup script and install it from the experimental section. If you don’t want to wait for it to be added you can install it manually.
I’ve configured it to default to msx2 in the core options.
I added an option for colecovision in the core options as well. Games run but I wasn’t able to figure out controller input so for now its basically useless.
After starting the MSX emulator ones, there is a “retroarch-cores-options.cfg” file made in the OPT/retropie folder.
In this file you can change fmsx-mode from “MSX” to “MSX2” or “MSX2+”.
Now it starts the MSX2 roms. Only the MSX logo at the startup is a bit messed up, but that could be my (very) small TV setup.