Reptiles in the Rose Garden - S1-E1
Continuity mistake: When Princess Toadstool tells her friends to come over to where the fight is happening, the Fire Bros' cream snouts turn red like their bodies. (00:04:31)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When King Koopa tells the citizens to repeat after him, part of his underbelly switches from yellow to green a couple of times. (00:03:29)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When King Koopa says that Kootie Pie should tell him what she actually wants for her birthday, one of his fangs switches from white to pink several times. (00:01:03)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When the Levitation Beam is first seen, the telescope on top of it is blue, but when King Koopa says that he finally found a gift that makes Kootie Pie happy, it turns pink. In the same shot, King Koopa's black pupils turn white. (00:04:58)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When King Koopa takes out his telescope, it is blue, but after he looks through it, it turns pink. (00:02:36)
Sneaky Lying Cheating Giant Ninja Koopas - S1-E2
Continuity mistake: When the Koopalings start approaching Prince Hugo's castle, they are holding weapons, but in the next shot, they disappear. In the same shot, Cheatsy's blue hair turns yellow. (00:03:06)
Misadventure of Mighty Plumber - S1-E12
Continuity mistake: When the woman in the television show for Mighty Plumber drops the receiver, the holder for it goes from grey to blue.
Misadventure of Mighty Plumber - S1-E12
Continuity mistake: Right before the woman in the television show for Mighty Plumber goes over to pick up the phone, the receiver is grey, but in the next shot, it is yellow.
Continuity mistake: When Mario and Luigi are looking at the submarine before they jump out of their gondola, Luigi's left glove goes from being present to absent.
Continuity mistake: When the Sledge Brothers approach Mario and Luigi when they are at the corner of the ring, Luigi's mask goes from red to skin colour. (00:09:54)
Continuity mistake: When first showing Toad, he has his regular clothes, but in the next shot, he is wearing a suit. (00:01:34)
Continuity mistake: When Mario and Luigi jump out of their gondola, Luigi's left glove goes from absent to present.
Life's Ruff - S1-E20
Continuity mistake: In the last shot at the Florida State Poochitentiary, Herman's hat goes from white to brown. (00:08:44)
Continuity mistake: When Mario opens a hatch, his moustache is brown, but in the next shot, it is black. (00:08:51)