Lemme just add a colophon to those who are still confused by the concepts that have been explained by this thread.
Dorje Shugden is an enlightened being, by merit of his past lives and his attainments as he is the reincarnation of many highly esteemed masters, starting with Virupa, Sakya Pandita, Buton Rinpoche and so on. His body/form is that of a tsen or earthbound spirit, but at the same time shows the aspects of an enlightened being through his iconography as well as his attainments, emanations and power. Even though his body is that of a tsen, his mind is enlightened and not tainted by samsara, making him an enlightened being in the form of a tsen that emanated specifically to be close to us and to help us out.