This is mid 90s, I remember playing it on a PC that didn't even have Windows on it. It was an alien invasion side scroller. You're some action dude that has to fight his way through the levels, some of the early enemies are little blobs that jump at you.
Any help appreciated :)
Edit: found it, it was Bio Menace! Thanks anyway for all the suggestions, folks :) Happy gaming!
bio menace was my first encounter with gore as a young lad. great game but I wasn't allowed to play it after my mom saw it lol
then one night my dad woke me up in the middle of the night to let me watch him fight the final boss
save