This involves punching holes in people and twisting off heads, probably as good an approach as any other. Convoluted as things are they do come together with Warren trying to save Chrissy from the Cretins. When Mr. Mutant starts his end of the film rampage blood flows red in the hallways. Fallout shelters are excellent makeout spots. Students bring a change of clothes to school every day.
Frat houses look like dance clubs on the inside.
Never punch a nuclear mutant. Sometimes girls spit up tadpoles. Murphy's Law applies to urine samples. High schools stock radioactive isotopes in sufficient quantities to destroy the building if an accident were to happen. Women can urinate while standing if they really want to.