Maybe you don't know this, but this is a special film. Why? It was James Cameron's first movie. Fuck yes.
Actually, this might come as a shock, but you wouldn't really guess this guy was going to go on to be one of the greatest mainstream directors of all time based on Piranha 2. Unlike the first one, this seems to want to be a somewhat more serious horror film, it's less tongue in cheek. There's some amusing shit here, especially since the piranha can now jump through the air (!), but I was kinda hoping that this would turn out to be a great low budget horror movie, and it's most definitely not.