Continuity mistake: When King Koopa and Kooky board the Mega Mechanasaur, the brown borders around the cockpit turn blue. (00:07:48)
Continuity mistake: When the Mega Mechanasaur starts breaking into Dome City, its dark-blue shoulders turn light blue. In the same shot, the cover underneath it disappears. (00:07:37)
Audio problem: When Kooky says that he will use the Mega Mechanasaur to conquer the world, his mouth does not move. (00:07:25)
Revealing mistake: When a cave person drives out of the factory, he overlaps onto a house. (00:05:38)
Audio problem: After Yoshi falls off Luigi, he speaks, but his mouth does not move. (00:04:32)
Continuity mistake: When Luigi and Yoshi start fighting over the stick, the black "L" on Luigi's cap turns green. (00:03:57)
Continuity mistake: After Luigi asks how many more wheels he and Mario have to make, his black mustache turns the same color as his skin. (00:02:26)
Continuity mistake: When Kooky lifts the mask of his disguise, its white tooth turns brown, like the rest of the mask. (00:02:17)
Continuity mistake: When Kooky is climbing a tree, his orange tail turns white, like the rim of his shell. (00:02:09)
Continuity mistake: When Mama Fireplant thanks Yoshi for saving her, part of her blonde hair turns red like her head. (00:11:22)
Revealing mistake: When Mama Fireplant says, "It is great to be back," Mario is overlapping a cave person. (00:11:17)
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: After Mama Fireplant picks up Princess Toadstool, one of her green leaves turns blue. (00:11:04)
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 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 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 Mama Fireplant picks up Mario, the porcupinefish's white sclerae turn blue, like its body. (00:10:56)
Continuity mistake: When Kootie Pie steps on a porcupinefish, her yellow bracelet turns brown like her body. (00:10:29)
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 Mario and his friends are about to land on the second platform, the spikes on Yoshi's back are missing. (00:06:36)
