Continuity mistake: When Mario and Luigi notice Yoshi eating the barbecue, the "M" on Mario's cap has its colours reversed, being white on a red background instead of the other way around. In the same shot, Luigi's legs are missing. (00:02:54)
Continuity mistake: When Kootie Pie picks up the shell, its green underside turns brown like its rim. (00:03:52)
Continuity mistake: In a couple of shots, when Kootie Pie and the Koopa Troopa are moving Mama Fireplant, Mama Fireplant's white lips turn brown. (00:04:08)
Continuity mistake: When Luigi is about to slip on the ice, the symbol on his cap has its colours reversed, with the "L" being white and the background being black instead of the other way around. (00:05:12)
Continuity mistake: When Luigi crashes into his friends, the white stripes on his and Mario's gloves turn blue, like their shirts. (00:05:18)
Continuity mistake: When Luigi crashes into his friends, Mario's white gloves turn the same colour as his skin, while the stripes turn blue like his shirt. This also happens when Mario asks where the ice came from. (00:05:21)
Continuity mistake: When Mario throws Luigi into the Warp Pipe, the ice under the grate disappears, making it appear as if the grate is resting on nothing. (00:06:03)
Continuity mistake: When Mario and his friends are about to land on the second platform, the spikes on Yoshi's back are missing. (00:06:36)
Continuity mistake: When Princess Toadstool catches Mario, her blue eyes turn black. This also happens when Mario jumps into the slush to save Luigi. (00:07:24 - 00:07:54)
Continuity mistake: When Mario and his friends are falling into Ice Land, the hand Mario holds onto Princess Toadstool with switches a couple times. (00:07:35)
Continuity mistake: When Kootie Pie steps on a porcupinefish, her yellow bracelet turns brown like her body. (00:10:29)
Continuity mistake: When Mama Fireplant picks up Mario, the porcupinefish's white sclerae turn blue, like its body. (00:10:56)
Continuity mistake: After Mama Fireplant picks up Princess Toadstool, one of her green leaves turns blue. (00:11:04)
Continuity mistake: As Yoshi and his friends are about to escape Kootie Pie's lair, Mario is to the right of the Mama Fireplant, while Luigi is to the left. But in the next shot, they switch places. In the same shot, Yoshi is colored blue as though he was stung by a porcupinefish despite never stepping on one. (00:11:09)
Continuity mistake: When Mama Fireplant thanks Yoshi for saving her, part of her blonde hair turns red like her head. (00:11:22)
Continuity mistake: Throughout the episode, Mario and Luigi switch between having four fingers on each hand to five.
