The three Robo-Boogers, Carl, Trixie and Frankenbooger, chase our heroes through town until they are cornered in an alley. They are about to destroy the four heroes when Sulu swallows them and then spits them into outer space. As everyone prepares to go home, it becomes obvious that there was a mistake with the Combine-o-Tron 2000, and now Melvin and Mr. Krupp have switched bodies. Several jokes are made with this outline, including "Kruppy the Kid" (Mr. Krupp in Melvin's body) roars and Ms. Anthrope to give him coffee or he would fire her. Seeing only a fourth grader, Ms. Anthrope gives him a wedgie. As for "Mr. Melvin" (Melvin in Mr. Krupp's body), he is also the basis of some abuse as he runs to hug his mother, who only sees a guy in his underwear coming to give her a hug, and promptly