Well, not [i]entirely[/i] sci-fi.  Remember that this is the same universe that has amazons, gods, actual magic, demons, etc. in it. XD

More sci-fantasy, really.  Superhero universes (especially the big two of Marvel and DC) tend to just toss in anything that seems cool, really. XD  Bare in mind that the animated Titans at least had a cyborg and an alien working alongside a half-demon magic user, after all. XD