There was a game that I played as a teenager (sometime between 1984 to 1986), but I can't remember what the name of it is. It was somewhat unique as it was a vector based swordfighting game (top down view). There were two fighters (probably knights) and you could either swordfight with the other player or knock him into some holes around the playing field. I believe that the vector screen was projected onto the artwork for the playfield to combine the two images (kind of like the method used in Discs of Tron). I only played it a few times as a kid, as it soon left the local arcade and I never saw it again.
Does this sound familiar to anyone?