Devil Doom was the Super Transformation of Black Doom, leader of the Black Arms, in which he transforms into a massive winged monster with two heads. During the Black Arms first invasion of Sonic's world, Doom took on this form to battle Super Shadow, leading to his death at the hands of the black hedgehog. (SU: #60)
- Devil Doom's name is never stated in the comic, but comes from the Shadow the Hedgehog video game. It is thus considered Tier 2 Canon.