Works perfectly !
This is only guaranteed to work on original system, should work on 90% of clone consoles BUT I DO NOT guarantee functionality on none of them. I know for sure it will NOT work on a RETRO FREAK and RETRON 5.

NOTE FROM THE AUTHOR

provide save file for download (saves time for team setups)

I CANNOT ADD A SAVE FILE TO THE CARTRIDGE SO YOU MAY HAVE TO CONFIGURE SOME STUFF YOURSELF