Running on MAME 0.139u1 (commonly used for MAME4droid ) is a unique case because the game originally ran on Sammy Atomiswave hardware rather than classic Neo Geo boards . ROM and Hardware Requirements
Download cheat.zip from a 0.139u1 repository. Enable infinite grenades or the “Heavy Machine Gun Plus” to experience the game’s hidden weapon mechanics. metal slug 6 mame 0139u1 rom top
: You must use a ROM specifically from the MAME 0.139 romset (also known as the MAME 2010 romset ). ROMs from newer versions like 0.2xx will not work. Running on MAME 0
Metal Slug 6 introduced several mechanics that differentiated it from its predecessors: metal slug 6 mame 0139u1 rom top