The Klown Kathedral is Klownzilla's "throne room" within the immense "Big Top" spacecraft. It is here, at the movie's climax, that Dave and Debbie and Mike are cornered by an army of Klowns all wielding mallets, golf clubs, and spiked baseball bats. The threesome are saved, however, when Rich and Paul drive their rented ice-cream truck through the Kathedral and right into the presence of Klownzilla. (Evidently, the Big Top isn't big enough for two Jojos.)