Does anyone know any good Gory anime's with killer girls in it?

I like anime's with killer girls that like to kill people. Like Elfen Lied and higurashi no naku koro ni. Does anyone know any other anime like that? Not School days because I saw that anime and ittook too long for it to get gory. Gantz was pretty cool. Cause it was gory. But I didn't like the characters that much. And I thought it was too perverted. Elfen Lied was at least funny perverted. But, Gantz was just plain perverted.