None whatsoever

Several dead bodies of divers and strange sea creatures are shown.

A massive crowd seeks shelter in a subway station, only for most of them to be crushed when the roof caves in.

A man is killed after Baby Gorgo accidentally smacks him with his tail.

A drunken man is punched twice, the second blow knocks him out.

Minor name-calling.

The two leads are shown smoking and drinking every now and again. One of them attempts to free Baby Gorgo while heavily drunk.

Mother Gorgo's red glowing eyes may be unsettling to younger viewers.