Ensure qsound.zip is in your ROMs folder.
Required for every Neo Geo game (Metal Slug, King of Fighters). qsound.zip: Required for Capcom CPS2 games to have audio. pgm.zip: Required for PolyGame Master titles. naomi.zip: Required for Sega Naomi titles. Finding the "Hot" MAME 0.139u1 BIOS Pack mame 0139u1 bios pack hot
To find the "hot" (most compatible and complete) set, you should search for or "MAME4droid 1.2.x BIOS Collection." Ensure qsound
MAME is designed to read the BIOS directly from the ZIP. Keep neogeo.zip as a zip. Keep neogeo
Place all the BIOS ZIP files directly into the same folder where your game ROMs are stored.
However, even with the right ROMs, you’ll often find your favorite games refusing to boot, throwing errors about missing "files" or "IC chips." This is where the comes in. Why Do You Need a BIOS Pack?
This almost always means the BIOS file is missing, or it is the wrong version. Ensure your BIOS pack matches the 0.139u1 version specifically.