“3-Headed Shark Attack” is the sequel to the equally absurd “2-Headed Shark Attack”. These are totally ridiculous movies that aim low but deliver a few chuckles. The two movies are pretty much the same but this one has Danny Trejo (“Machete”, “Heat”) in it so that makes it a little better.

A three-headed shark starts attacking a research station. As the scientists escape, they try to figure out a way to defeat the monstrous shark. Also, a group of drunk youngsters having fun get caught in the shark’s path. It’s going to be one tough battle to beat this abomination.

Although Danny Trejo features prominently on the movie’s poster, he’s sadly not in that much of the picture. However, we do at least get to see him hack one of the shark’s heads off with a machete. That whole sequence is easily the highlight of the entire film. Rob Van Dam (“Sniper: Special Ops”) also appears in the movie. He’s pretty awful. The rest of the characters are really forgettable and none of the scientists are remotely convincing. The shark monster is hilarious. Something about having three heads makes it even more amusing than the creature in the first movie.

There is no getting away from the simple fact that this is a bad movie but it knows it’s a bad movie. The sequences with the shark are enjoyably goofy. Any film with Danny Trejo hacking up a shark cannot be completely without merit. It doesn’t matter whether or not you’ve seen “2-Headed Shark Attack”, if you want to see a film with a shark with multiple heads snacking on people then this movie delivers the goods. Just don’t expect to see any good acting, a clever plot or any of the normal things you would be looking for in a film.