First things first, will admit to not expecting much. The premise sounded ridiculous and it looked pretty bad. Even when trying to find some good in them, although there are good ones ('Jaws' being the king of them all) and some guilty pleasure ones shark films generally have not scored highly with me even when trying to take them for what they are.
Before anybody gets defensive, am well aware that films like 'Piranha Sharks' are not ones to be taken seriously. Have seen my fair share of low-budget shark films, and any other kind of low-budget creature film, and will admit to finding some guilty fun in some of them (i.e. the first two 'Sharknado' films). There are marginally worse shark films than 'Piranha Sharks' certainly. Sadly 'Piranha Sharks' is just too amateurish to accept as a guilty pleasure, where nearly everything is just poor quality that it's insulting and there is nowhere near enough fun, intentional or unintentional, moments.
Was not expecting anything intelligent here, am well versed now to know that it is not that kind of film, but 'Piranha Sharks' does feel like it was made by somebody who didn't know how to give a film brains, so much so that it'll make the viewer feel dumb and that is not a nice sensation to feel watching a film.
'Piranha Sharks' does have a couple of small redeeming quality. The opening scene was actually pretty entertaining, something that put the viewer in the mood for some very dumb but guilty pleasure fun. Unfortunately, it rapidly fell downhill, where ridiculousness and cheapness amongst other things were taken to extremes.
Kevin Sorbo also tries his best to inject some energy into his role.
Visually, 'Piranha Sharks' is yet another low-budget shark attack film that looks cheap and like it was made with no budget, heart or enthusiasm. Any nice scenery that the movie has is difficult to appreciate when the movie is shot in such a drab way and when it's edited so amateurishly that bacon-slicer-like editing looks more refined. Worst of all in this regard are the effects, as it was made on low-budget it would have been forgiven a little if it was not great, but when the effects for the shark look as if no effort was given in making them without looking so goofy and unfinished-looking that is hard to ignore.
The opening scene apart, so the shark's lack of presence or personality, it's not menacing, it's not scary and it's not fun, it's not even strong enough to bring any unintentional humour or goofiness, that's how bland it is. The music is very generic and adds very little, it's not always appropriate either and quite a lot of it is actually pretty annoying.
Writing ranges between incredibly bad to appalling. Any comedy is incredibly forced and is so cheesy it is enough to make the eyes roll in disbelief, while the more serious moments are very awkwardly written and as trite as anybody can possibly go. Regarding the shark attacks, some are rushed, others are badly drawn out. They lack any kind of suspense and the over-silliness to the point of intelligence-insulting stupidity, terrible shark effects, bad editing and even more gratuitous gore further cheapen them.
Describing the story as weak is being too insulting to the word weak, it is a very lethargically paced and thin as ice story with lots of padding that is either badly written or serves no point at all to the movie, other than attempts at novelty value, which falls flat on its face because it all feels so tired. It is not fun, it is not scary and it is not thrilling or suspenseful, it's just nothing but tired stupidity.
As for the characters, that they're tired cliches isn't so much a problem, the problem is that they are either obnoxious with them constantly doing stupid things, so bland that it makes zombies seem more animated or both. Some of them are superfluous to the story or come and go out of nowhere constantly. The direction is as flat as a pancake, and the acting is amateur hour awful, apart from Kevin Sorbo trying his best.
Review by TheLittleSongbird from the Internet Movie Database.