6 Mame 0139u1 Portable //top\\: Metal Slug

You can run the game directly from a USB flash drive or an external hard drive. It doesn't write files to the Windows registry, keeping your host computer clean.

If MAME 0.139u1 is giving you trouble (e.g., "Overall not working" errors), consider these more modern options: metal slug 6 mame 0139u1 portable