Is vba legal

it really does depend, the emulator itself is not ileigal, it's the roms that are the case, roms are not ileigal in the sense that over hundreds of millions of people make videos on roms on youtube and those videos don't get removed so you can tell roms are not copywrited but they do contain the copy of the game so most of the roms are ileigal, but you can download them in zips which hides the ileigal content this way, you can play the ROM in a zip, if you're playing roms online that's ileigal if you want legal roms there are websites that host them but you'll probably have to pay them so they pay Nintendo but it's not worth it, so just ignore the whole vba and ROM ileigal thing and just play roms on vba for fun.