SkullMan.EXE is the NetNavi of Miyu in the MegaMan NT Warrior anime series. Much like his operator, SkullMan had a prominent role in the first season before the two of them were removed from the cast at the start of Axess, although the duo did return in one episode of Axess. (If someone could do a Papyrus impression for this guy, I would be surprised and welcoming for that)