20,000 Koopas Under the Sea - S1-E26
Revealing mistake: When Mario and his friends are running from the Koopilus, Mario freezes for a split-second. (00:03:43)
Starring: Harvey Atkin, Jeannie Elias, John Stocker, Danny Wells, Lou Albano
20,000 Koopas Under the Sea - S1-E26
Revealing mistake: When Mario and his friends are running from the Koopilus, Mario freezes for a split-second. (00:03:43)

Two Plumbers and a Baby - S1-E17
Continuity mistake: In one scene, Luigi is wearing the same colour hat as Mario, and when Mario opens his mouth to talk, it's Luigi's voice we hear.
Trivia: When the Quirks uses their noses to play a song to get rid of Koopa for good, they play the theme song from the video game The Legend of Zelda.
Question: Why was Toad's color palette sometimes way different, primarily in the first couple of episodes? Why didn't they bother changing this with the final results? It's relatively inconsistent on what palette is used in each episode, despite the fact the more recognizable of the two (white mushroom with red spots along with a variety of coloring in clothes) is shown much more often than the other (red mushroom with white spots along with the majority of his clothes being red and white).