Though to be fair, I only briefly alluded to the works of Friedrich Nietzsche in Poisoned Rationality and again in Annals of Fear II. Joani produced a whole freaking essay on the subject.
Those of a philosophical bent might want to head on over there and read what the blogger has to say: Thoughts on the Nietzcshean Themes of Death Note. Do you share their views regarding Kira, when set against Nietzsche's statement that (the) God (of this New World) is dead?
I found it interesting anyway. Particularly when applied across the board of Death Note characters and their situations.
"You look sane enough to me." She shrugged. "And I don't think you could ever become a monster."