This is a weakly hidden copy of Splash. Only Splash was better all around with an original plot and better characters.
The 1980s had these types of movies that had a certain style of wacky humor that I think only appealed to the generation which grew up in the 1980s, like I did. That's why some people totally dismiss this movie.
When I write a review it's usualty because I feel compelled to praise the praiseworthy. Not this time.