Retroplayer is not working on KVIM. Konami code is executed. Select rom under games menu, no pop-up to ask which emulator to select, only black screen and after some time back to the home screen. Also tested with clean install.
In LibreELEC-KVIM-8.90.005 everything works as expected. Konami code is executed, select rom under games menu, pop up with question which emu to use, emu selected and installs, game is launched.
Only tested with snes roms and with all snes emulators.