The Night Before Cave Christmas - S1-E6
Continuity mistake: When Mario says that Oogtar has some explaining to do, the white stripes on his gloves turn blue like his shirt. (00:09:44)
The Night Before Cave Christmas - S1-E6
Continuity mistake: When Oogtar says that he does not deserve a present, Mario's red overalls turn purple. (00:11:02)
The Night Before Cave Christmas - S1-E6
Continuity mistake: When Mario and Yoshi run away from the Koopa Football Players, the orange rims of their helmets turn white, like their mouth guards. (00:09:05)
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)
The Night Before Cave Christmas - S1-E6
Continuity mistake: When Mario shakes the sauce off him, the red emblem on his cap turns black. (00:01:48)