Wanyuudou
Wanyuudou is a massive disembodied head youkai from the GeGeGe no Kitarou series. What's interesting about him is that he's basically a wildcard in the franchise—sometimes he's helping Kitarou out, other times they're at odds. He's intimidating just by design alone, being this giant floating head, which probably explains why he gets cast in both heroic and villainous roles depending on the story.
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