Story:Operation Carnage is a top down arcade-style shoot-em-up for DOS developed by Midnight Synergy and released in 1996. It is now available as freeware.
I onl had a demo of this game as a kid but the music was awasome and the violence was awsome, going room to room destroying everything with a range of creative and destructive weapons. It was so colourful and the bosses were the coolest things I ever fought.