Complex sentence: A recurring joke is that when Pud'n is successful he starts to cry, as seen in the episodes "Bad News Ghouls" and "Go Kart 3000", because he is afraid that his fans will hurt him.
Split into simpler sentences: A recurring joke is that when Pud'n is successful he starts to cry, as seen in the episodes "Bad News Ghouls" and "Go Kart 3000". This is because he is afraid that his fans will hurt him.