Continuity mistake: At the beginning of the episode, Mario's brown hair turns black, like Luigi's. (00:00:39)
Continuity mistake: When Mario and his friends run over to the gondolier, Toad's pants disappear. (00:00:59)
Continuity mistake: When the Doom Sub is hitting the clotheslines, its roof disappears briefly. (00:05:56)
Continuity mistake: When King Koopa tells Kootie Pie to turn on the engine, the lever is yellow, but in the next shot, it turns brown. (00:09:58)
Continuity mistake: When Mario flies past King Koopa and Kootie Pie, Kootie Pie's yellow bracelets turn grey. (00:10:10)
Continuity mistake: When Mario meets up with Luigi in the cockpit, the yellow eyes on Luigi's frog suit turn white. (00:10:12)
Continuity mistake: When Mario and Luigi are looking at the submarine before they jump out of their gondola, Luigi's left glove goes from being present to absent.
Continuity mistake: When Mario and Luigi jump out of their gondola, Luigi's left glove goes from absent to present.
