Look for Classicnesmods on reddit. There are ways to get almost every game working 100%. You need to install RetroArch and other modules (emulators) to get everything working. For some games you have to useva different NES emu. You can even play other systems and MAME also! I have the arcade DK on mine. I replaced all my 30 games with different versions or even the roms from the unit itself reinstalled again, just so Incoukd get rid of the ALL CAPS names for some games and to replace stuff like the Canadian StarTropics cover on from the offical Classic NES.