Because Urbanus does all kinds of pranks, he has to go to an improvement institution. There, Dr. Schrikmerg uses him as a guinea pig for his new invention: he makes a sort of robot from Urbanus.
Unfortunately the movie The Cheerful Rascal is not yet available on HBO Max.
| Directing | Jimmy T. Murakami | Director |
| Writing | Jimmy T. Murakami | Writer |
