Doom's Eye is a Black Arms creature that serves as the eyes and ears of Black Doom. It is actually a part of Black Doom himself, a third eye that separates from his body in order to observe the activities of his enemies and underlings over long distances. Throughout the Shadow the Hedgehog game, Black Doom sends this eye to monitor Shadow's progress and issue orders to him. It floats through the air, communicates in Doom's voice and can project holograms of Doom as well. Doom's Eye perished when Super Shadow defeated Devil Doom in their final showdown.
In the Archie Comics' storyline Shadowfall Black Death possessed a creature identical to this called "Death's Eye". This creature died following Black Death's own demise.