Written by Jonathan Wojcik with the aid of With the Will, Digimon Wiki and Wikimon
BOOGIEMON AND PHELESMON
Introduced in 2002's D-Spirit virtual pet, I suppose Boogiemon was meant to be a brand new Devimon-like Adult digimon, and while that wasn't really necessary, it does something different enough with the role to stand out quite well. It's a more traditional, red-skinned Halloween sort of devil, but with freaky shoe-shaped feet, a big pointy snout, three-fingered popeye arms and a covering of black tattoos. The anatomy is really nice, too, really meaty, without any cybernetic looking pieces tacked on anywhere. A great addition to the series many demons.
Boogiemon's perfect stage, Phelesmon, unfortunately scraps the more goblinoid features for much more human proportions, but on the upside, that's a pretty badass outfit, and I feel like this is one of the most demonic looking digimon demons of them all. That face is just so damn sinister, and looks great with the spiky, black punk hair. Do demon digimon ever completely disappoint?