User blog comment:LucidPigeons/Category Cleanup/@comment-2059440-20160301040046/@comment-366087-20160305173354

First, no need for "Evil"-anything as just being listed here they are Evil and Villains. So that would leave the label as "Spirits", which would be covered by either Corporeal Undead or Spirit Undead. The rest is just the degree of those two, which would probably be covered by other cats such as "Monarch".

IMO "Ghosts in the machine" are either spirit undead possessing a technological host, or are a form of artificial intelligence even if copied from a formerly living breathing individual. The Animé/Manga of the same name actually use the term "ghost" as a living being's intangible aspects inside the techno/corporeal barrier, so sort of a blurring of the definition as to if it is a "soul" or "spirit" or something else.