Mame 0139u1 Bios Pack Upd < ULTIMATE ✦ >

I'm trying to play using the mame4droid 0.139u1, but this appear when i'm trying to play any Metal Slug, any help of where i can get those files ?

Arcade games often share the same hardware. Instead of including the system data in every single game file, MAME uses a separate BIOS file that all games on that hardware reference. For example: mame 0139u1 bios pack

Are you setting this up for a or a different handheld device ? I'm trying to play using the mame4droid 0