This episode marks the first time of many to include the Marshmallow Man, although a likeness of him appeared from one of Sandman's victims dreams in " Mr. Sandman, Dream Me a Dream".
This episode marks the first and only the time the entire front of the Containment Unit opening and simultaneously closing by itself.
The voice actors were recorded on July 16, 1986.
When Ray announced they caught six Full Torsoed Apparitions and a Vaporous Phantasm, Peter chimes in with a rendition of a verse from "The 12 Days of Christmas."
The title of this episode is a reference to the phrase "cry/say/yell uncle" which means to surrender or admit defeat.