You can thank Death Sword for MobyGames.
Death Sword is a very simple game that doesn't show its true potential until you play it with a friend. The moves are fairly varied; you can drop'n'roll, attack high, kick, etc. Two of the coolest moves are swinging your sword around in one hand ala Schwartzenegger/Conan style, and also doing a reverse-jump-twist with your sword extended. This latter move is a death blow: If it connects, it beheads your opponent.
So what does this have to do with MobyGames? Death Sword was, for a time, a short passion between Brian and myself; the gameplay quickly turned into a cat and mouse game, waiting to see who twitched first. With the exception of Hack (which one of us played while the other looked over his shoulder), Death Sword was probably our most oft-played game together.
Beating the end boss is very difficult; since it takes so long to get to him, you get frustrated very quickly when you fail and have to start all over at the beginning.
The framerate is only about 4 to 6 frames a second; all PCs are capable of faster, so it's probably due to the game having been ported from another platform and not having the game logic and sprites adjusted.
The Bottom Line
A very capable early fighting game. Learn the moves, teach them to a friend, and then go crazy.