All ROMs should work but whether the Emulator can run said game is the real question. Certain emulators run certain games better, so you'll just have to see how well the game you want to play will run.
"NintenDON'T sue me please haha"
I am late to the party and was unable to get all the ROMS I wanted from emuparadise and found this site. I am somewhat a newb to emulators and ROMS. I was able to get a raspberry 3 to run retropie and the ROMS I got from other said site but I would like more. Do all ROMS work on emulators? For example, all my ROMS from emuparadise work on my rpi3 but emu didn't have the pokemon games but this site does. Will this site's ROMS work on my rpi3 with retropie? Thanks