There have been some pretty rad final bosses in video games over the years. I can think of a few. There's GLaDOS, Kefka, Malus, Meatenstein, and lots more that I can't think of. So what are your favorites?
A quick use of the forum's search function revealed no threads of this sort in the past, but if there is one you can feel free to laugh at me and call me embarrassing names.