Spinal from Killer Instinct. In my opinion, he was a cool and unique fighting game character at the time despite his REALLY simple design. Like, seriously, he was a Skeleton dude with a sword, shield and bandana...and glowing eyes. But his moves were awesome. He could absorb projectiles and then steal people's moves which was neat. Also he had a teleport move called Skeleport! I love saying that "Skeleport!" Again, his theme song from the first game was super-badass and really fit him well. Seriously, youtube it, it's awesome.
Killer Instinct © Rare Ltd.