Bloodier than average (for the time) flick about slimy, radioactive sea monsters. These beasts don’t stay in the water, though. They’re just as comfortable up on the land where they crash slumber parties and slaughter stranded motorists. The actual beach party only lasts for the first twenty minutes, but it’s a great one. If there’s a cute girl wiggling her ass to the catchy music (provided by the Del-Aires, playing on the beach), director Del Tenney makes sure he’s there, behind her, to film it. We also get corny jokes galore and a fistfight between preps and bikers.
Two movies in 1964 boasted that they were “the first monster musical”: this and Ray Dennis Steckler’s The Incredibly Strange Creatures Who Stopped Living and Became Mixed-up Zombies. Steckler’s film beat this one to the drive-ins by about a month.