In Um Jammer Lammy, the background of Stage 2 with Chief Puddle is the dancefloor to one particular firefighter who strikes resemblance to PaRappa's mother from the comics and is most likely intended to depict her, as she is also a firefighter. As far as her fellow firefighter colleagues seem to care about the situation at hand, she seems to care the least, even having her jacket unbuttoned for the occasion. She is also the only one on the fire crew to not be a Dalmatian.

https://parappatherapper.fandom.com/wiki/Mama_Parappa