
Koopenstein - S1-E21
Continuity mistake: In Mouser's first appearance, he does not have a laboratory coat on, but in the next shot, one appears. (00:03:46)

Starring: Harvey Atkin, Jeannie Elias, John Stocker, Danny Wells, Lou Albano

Koopenstein - S1-E21
Continuity mistake: In Mouser's first appearance, he does not have a laboratory coat on, but in the next shot, one appears. (00:03:46)
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.
Answer: "Club Mario" was reruns of the original show repackaged with new live action segments. It was a cheap way to present the old animated episodes as a new show. Club Mario was incredibly unpopular and eventually reruns of the original show with the Captain Lou Albano segments were aired in its place.
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