Oh, yeah, Negative Edge is a thing. Forget what I said, I'm dumb. xD
http://en.wiktionary.org/wiki/Appendix:Glossary_of_fighting_games#Negative_Edge
I can't really explain it but just take your head off then press and hold hp. Nothing happened right? Now let go. Something happened.
You can do that with a lot of specials if you want to.
like uh say you do fortune s.hp head-on you hold onto hp do the qcf input then let go of hp and you still get her rekka.
Well, when this, Smash Bros and the time I played a bit of Persona 4 Arena is all I've played in terms of fighting games, it's hard to say that I know a lot. Much more then I started though. Thank you for the help to both of you.