I loved it. Piranha 3D is what Snakes on a Plane wishes it could have been. It's not just exactly the shameless schlockfest I thought it would be, it goes way, way beyond it. Depraved, gross, disgusting, bloody kills, and so much boobs and ass it's basically a porno movie. Absolutely shameless, especially for a mainstream Hollywood movie. This is not a movie that can be discussed in polite society. But here, I'll say for the interested and like minded, it's fucking great.
They're not "new" per se. The made them years ago, but never aired them. They've been floating around on the internet for some time, and I think they're included on the DVD sets, but I'm not sure about that.