Hello there, I have found a bug I believe. I am using most of my roms from zipped (.zip) files and have it set for them to unpack to a folder called temp inside my retroarch folder. All roms for all systems I have tested and played unpack and work fine, and retroarch will delete any unpacked rom when the game is exited or retroarch closes except for the neo-geo pocket color roms (.NGC). everyone I have played retroarch will not delete them when I quit them or exit. Just something I thought I would share.
Hmm. That’s usually a result of RetroArch not exiting properly. Can you get a log (run retroarch_debug.exe --menu --verbose from a command line and then run and close an NGPC game) to see if the core is doing something unusual on exit?