I've going at it for the past few weeks and I can't find anything. I'm looking for an old windows game with the following:>at least 2 games in the series (no clue if there's more)>1player or 2player co-op, shared keyboard>side-scroller, wide area, defeat all enemies before continuing, they keep spawning>pixel art i think, crunchy low bit audio explosions>handguns, shotguns, grenades, laser weapons>kill monsters such as skeletons, zombies, devilsI have no clue where I got this game from when I was a kid, maybe the internet, maybe a CD
