GXGeo game help

Ok I'm trying to get KOF 2002 to work on GXGeo, but it says that the bios files are missing. Where can I get the bios files?
Also I added Metal slug5 to the roms folder(zipped), but for some reason GXGeo doesn't give me the option to pick it. Any help on this?

We can't tell you where to get BIOS files. Your ROM files should go in SD:/gxgeo/roms/

Because of its large file size,k.o.f.(and metal slug 5) wont play.I beleve the file size limit is 25 mb.which. makes it allmost useless for most, seeing there's a limted amount of roms within the size limit.

The size limit for the roms is 48 MB of uncompressed data (MEM2 - 16 MB used by IOS).

ok thanks. I recently found this out thanks to a video.