Running on the MAME 0.139u1 romset is a frequent goal for users of legacy emulators like MAME4droid (0.139u1) . Because this specific version of MAME corresponds to the year 2010, it carries unique compatibility requirements and performance hurdles compared to modern versions. ROM Compatibility & Versioning
Place your mslug6.zip in the same /roms folder. Open MAME and press F5 to refresh the list. If the game appears green or white, you are ready. If it is red, you have a bad dump.
Open your emulator and perform a "Rescan" or "Audit" to detect the new game. Common Issues "Required Files Missing": This usually means your mslug6.zip is from a newer/older ROMset or you are missing the awbios.zip Black Screen:
: Often cited as a superior sequel to Metal Slug 4 and 5 , this entry feels closer in spirit to the legendary Metal Slug 3 .
For MAME 0.139u1, the parent ROM (usually named mslug6.zip ) must contain these specific CRC32 checksums. Missing a single file means the game won't boot.
: Unlike previous entries where characters were just visual swaps, each now has unique traits. For example, Marco’s pistol deals double damage, while Fio starts with a Heavy Machine Gun.