What is the climax of the movie killer klowns?

It's original plot and inventive ideas make this an enjoyable movie which doesn't take itself too seriously. Which genre it belongs in borderlines throughout the film.

Explanation:

Killer Klowns from Outer Space is a 1988 American science fiction horror comedy film, made by The Chiodo Brothers and starring Grant Cramer. It is the only Chiodo Brothers' directed and written film - they have worked in many other projects in other roles, such as producing and visual effects.