> From what I found online the original arcade is like that so is there nothing you can
> do except play one of the home ports.
Indeed, the Arcade version has no blood as most Atomiswave releases (Hokuto no Ken, Samurai Spirits Sen). Maybe due to Sammy politics...
I'm not into hacks and bootlegs at all but for once, I would love to see someone make a bloody Metal Slug 6 Atomiswave cartridge. I'm sure this feature is lying somewhere in the source code...
NPlayers.ini - The multiplayer description file for MAME. (Linux user #448789)