True Colors - S1-E23
Revealing mistake: When the Mario Bros. arrive during the attack, one of the Mushroomers is overlapping a bush. (00:01:52)
7 Continents for 7 Koopas - S1-E22
Revealing mistake: When Mario takes Kootie Pie's wand, the background moves behind them. This is most likely due to this shot being a recycled shot from when Kootie Pie was showing the paintings of her to King Koopa earlier in the episode. (00:11:04)
Revealing mistake: When the hidden chamber is revealed, the background is that of the chamber instead of the basement. (00:07:44)
Revealing mistake: When King Koopa walks over to the cockpit, he appears out of thin air. (00:09:13)
Revealing mistake: When Princess Toadstool and Toad are running to Princess Toadstool's castle, they briefly appear frozen. (00:06:33)
Revealing mistake: When everything is returned back to normal, both times, a bowl appears from thin air, while a Mushroomer by a clothesline freezes. (00:03:17 - 00:11:08)
Life's Ruff - S1-E20
Revealing mistake: When Herman asks if someone called him, his net is layered behind his arm. (00:05:27)
Life's Ruff - S1-E20
Revealing mistake: When Luigi and King Windbag run over to the side of the car, they are layered over a bush. (00:04:24)
Revealing mistake: When King Mackerel gives Mario a medal, it passes through him. (00:10:59)
Revealing mistake: When Mario watches his friends leave, a Spiny Cheep Cheep disappears into thin air. In the same shot, Toad does not leave with Luigi and Princess Toadstool, but he is with them in the next shot. (00:07:32)
Misadventures in Babysitting - S1-E13
Revealing mistake: When Cheatsy says, "It could be the start of a new friendship," his eyes overlap his snout. (00:04:10)
A Toadally Magical Adventure - S1-E14
Revealing mistake: When the pipe creatures make some blocks come to life, the light around the blocks is misplaced. (00:05:53)
Mush-Rumors - S1-E17
Revealing mistake: When the report is printed, it appears out of thin air. (00:09:55)
Mush-Rumors - S1-E17
Revealing mistake: When Missy says she is glad her family brought her to the Mushroom Kingdom, some of the splashes are layered over the car and Luigi, and shortly after, some of the Bob-ombs overlap the car. (00:06:27)
Mush-Rumors - S1-E17
Revealing mistake: When a Mushroomer says he saw the aliens, one of the Mushroomers is slightly overlapping another one. This also happens when Mario takes off his cap. (00:04:29)
Mush-Rumors - S1-E17
Revealing mistake: When Norman opens the bonnet, it duplicates. (00:01:58)
Mush-Rumors - S1-E17
Revealing mistake: When Norman and his family are about to crash, the background appears to be sideways. (00:01:39)
Mush-Rumors - S1-E17
Revealing mistake: When Bud's mother says her husband is going to ask for directions, her left arm disappears. (00:01:30)
Mush-Rumors - S1-E17
Revealing mistake: When Norman says that he and his family have arrived at the amusement park and when he says that they are not lost, his hands are holding the steering wheel, but they are completely layered in front of it. (00:00:54)
Revealing mistake: When Milli Vanilli is changed back to normal, the light around them is misplaced. (00:10:02)
