However, their charge attacks are slower and there appears to be a slight lag when they initiate their charge attacks. The Forgotten One's attack is almost identical to that of the Lost Souls in Doom 3 its only attack consists of flying towards its enemy and biting.
It is a flying skull with two demon horns, when it floats a flame ejects behind it. They are exclusive to the Resurrection of Evil expansion pack. The Forgotten Ones' form is an echo of the original Lost Soul's shape in the classic Doom games, replacing the reinterpretation in Doom 3.