ok so i have been looking for this for YEARS at this point with no real conclusion in sight.
the game it self was pretty violent as it was pretty much a game in which you play as pac-man with a ak-47 shooting at the ghosts however
the odd bit was when you killed the ghosts they would scream really loud and the fact the game it self was 2d . as far i have checked out it would of have been on windows me according to the only other person who remembers it my brother . even with that looking this game on things like google grants nothing.
so at this point im very interested if anyone knows what the hell im talking about.
Have you tried Newgrounds already? It seems like something that would fit there. If not, I might take a look tomorrow, provided the games there still work.