THERE’S DEFINITELY A MONKEY WITH A BATMAN SHIRT ON IN THIS.
The 80s LOVED monkeys, dudes with square, [Aaron] Eckhart-esque faces, and saxophones.
Also, it looks like Partyman’s henchpeople take a woman against her will into his lair, and he keeps feeding the mermaid booze and then the police come too late to save everybody from being poisoned. And then that’s the end.