How do I know which games are supported??

I have downloaded a few games and they are not supported to work talk about wasting points.... How do I know which games are going to download support files to work?

all our roms work. Whether or not your specific flashcart/emulator can play them is an entirely different matter and outside of our control. the majority of the flashcarts named 'R4' have very poor game compatibility, that is the fault of the teams producing (or not) the firmware files.

i cant believe you tried some of the games on a decent emulator such as the latest one from desmume?it has 100% compatibility as far as i checked last time with major releases.

I have an M3 Zero I card is this not a good card to have what is a good card I'm only starting out on this so not sure which is the best

I don't think the M3 zero is updated anymore. Current good cards are acekard 2i and supercard dstwo

AceKard is good against anti-piracy, lemme tell you

flashcarts named 'R4' have very poor game compatibility, that is the fault of the teams producing (or not) the firmware files....

Thank you all for your advice ;)