Most of this episode is in color, while the flashback sequence with King Koopa becoming the king of Cramalot in "King Mario of Cramalot" shown in black-and-white.
The cartoon episode, "King Mario of Cramalot" is a parody of the Legend of King Arthur", with Cramalot being a pun on the fictional castle Camelot.
This is the first episode where Mario is able to power-up without the use of a Fire Flower or a Starman.
In "King Mario of Cramalot", for the first time King Koopa says his catchphrase, "He who Koops and runs away lives to Koop another day!"