The original production from 1988–2000 and 2003–2006 created 156 five-minute episodes and one special 25-minute episode. The episodes were written by Silvio Mazzola and were directed and animated by Otmar Gutmann using clay animation, at Trickfilmstudio in Russikon, Switzerland. In the style of voices a retroscript was chosen, and all voices were performed by Italian voice actor Carlo Bonomi without a script, using a language of noises that he had already developed and used for Osvaldo Cavandoli's "La Linea". This feature enables people of different linguistic backgrounds to be able to follow the story.