Continuity mistake: After Luigi gets his periscope, the letters on his and Mario's caps are white instead of green and red, respectively. (00:05:08)
Continuity mistake: Initially, the Crud Cannon is orange, but when it first fires, it turns mostly blue and green. (00:09:59)
Continuity mistake: When King Koopa puts a tin on Big Mouth's head, his green arm turns orange. In the same shot, Big Mouth's white toenails turn brown like his body while Bully and Kootie Pie disappear. Additionally, Big Mouth's mumbling is recycled dialogue from when he was talking to Bully about not helping to remove the rubbish. (00:07:35)
Continuity mistake: When Mario and Luigi are dumped into the Warp Pipe, a Sledge Brother's green hand turns white. (00:05:50)
Continuity mistake: When Mario loses the wand, Toad's black eyebrows turn white, like his cap. (00:04:21)
Continuity mistake: When Luigi and Toad get Super Leaves, Toad's blue pants turn purple. (00:03:13)
Continuity mistake: When Mario and his friends hide behind the knight, Hop's cream-coloured upper jaw turns green like his head. In the same shot, Kootie Pie's yellow bracelets turn grey like the other Koopalings' shackles. (00:02:47)
Continuity mistake: When Big Mouth asks if Bully heard their father, the yellow rim on his shell turns white. This also happens when King Koopa says that he hopes the Koopalings are removing the rubbish, and when Big Mouth says that he cleaned the most. (00:01:05 - 00:01:36)
