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)
The Night Before Cave Christmas - S1-E6
Continuity mistake: When Luigi walks over to the jack-in-the-boxes, the one Oogtar is hiding in is green, but in the next shot, it is yellow, and shortly after, the lid on it disappears. (00:04:41)
The Night Before Cave Christmas - S1-E6
Continuity mistake: When first showing the workshop, the jack-in-the-boxes from left to right are purple, red, and yellow, but when Oogtar is looking at his present, the purple and yellow boxes swap colours. (00:04:27)
Continuity mistake: When Mario, his friends, and the cave people are ready to fight the Mega Mechanasaur, the machine's lower jaw changes from yellow to blue. (00:10:40)
Continuity mistake: When Mario falls into the cage, King Koopa disappears. (00:07:29)
Continuity mistake: After Mama Fireplant picks up Princess Toadstool, one of her green leaves turns blue. (00:11:04)
Continuity mistake: Throughout its appearance, the colour of the Mega Mechanasaur's levers changes. (00:07:45 - 00:11:26)
The Night Before Cave Christmas - S1-E6
Revealing mistake: When Oogtar is looking at his present, the lid on the jack-in-the-box he is hiding in appears from thin air. (00:04:28)
Revealing mistake: When Yoshi says the circus is more fun than tennis, a line on his underbelly is layered on his left arm. (00:04:17)
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 Mario rips the tent, the lock on the cage faces away from it, but in the next shot, it faces towards it. When Luigi, Yoshi, and the cave people cheer for Mario, the lock returns to its original orientation. (00:10:12)
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 Mario goes out of bounds to hit the ball, he is briefly layered behind Yoshi. In the same shot, the white stripes on his gloves turn blue like his shirt. (00:03:16)
Revealing mistake: After Mario jumps over the statue, he is layered in front of and behind the wall. (00:09:14)
Revealing mistake: When Mario runs past Big Mouth and some Koopa Football Players, he is layered underneath them. (00:09:43)
Revealing mistake: When Mama Fireplant says, "It is great to be back," Mario is overlapping a cave person. (00:11:17)
Revealing mistake: When Mario jumps onto a moving platform, he passes through it. (00:09:29)
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 Wizenheimer explains that he is an evil Koopa Wizard, Mario's black moustache turns brown. In the same shot, he and Luigi's grey shackles turn white like their gloves. (00:05:14)
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)
