Revealing mistake: When Mario runs over to the Ostro, he can briefly be seen running in midair. (00:07:56)
Revealing mistake: In the live-action segment, when Mario says that Luigi has been eating breakfast backwards, the screen is briefly frozen for a few frames, revealing that Luigi eating backwards is merely footage of him eating forwards played backwards. (00:18:55)
Hooded Robin and His Mario Men - S1-E25
Revealing mistake: When Hooded Robin introduces himself, a bush moves with the screen for a few frames. (00:04:06)
Hooded Robin and His Mario Men - S1-E25
Revealing mistake: When Mario tells Hooded Robin to remember him and his friends, Luigi is layered between the crossing gate. (00:07:04)
20,000 Koopas Under the Sea - S1-E26
Revealing mistake: When Mario and his friends are running from the Koopilus, Mario freezes for a split-second. (00:03:43)
Mario meets Koop-Zilla - S1-E28
Revealing mistake: When Mario says that the Super Sushi makes for great spaghetti sauce, his visor is layered in front of his head. (00:03:44)
Mario meets Koop-Zilla - S1-E28
Revealing mistake: In the live action segment, when Madam AGoGo begins reading the Bros' fortune, a lightbulb can be seen making the crystal ball glow. (00:17:25)
Revealing mistake: When Rappin' Koopa looks through his telescope, part of the background can be seen at the edges of the screen. (00:05:08)
Revealing mistake: When Mario says that it does not look good for him and his friends, a Koopa Troopa's foot overlaps the sombrero chariot. (00:06:46)
The Koopas are Coming! The Koopas are Coming! - S1-E35
Revealing mistake: When George Washingtoad slides away from his tent, he briefly overlaps the stove and one of his guards. (00:07:20)
Revealing mistake: When Luigi trips over a bone, the bone is layered over him. (00:03:30)
Revealing mistake: After Alley Koop orders his army to attack, he is briefly layered over a Koopa Troopa. (00:04:01)
Elvis Lives - S1-E39
Revealing mistake: When Kool Koopa tells the Goombas to get Mario and his friends, a building overlaps one of the Goombas. (00:05:17)
Revealing mistake: When Sergeant Kooperman stops at the fire escape, he moves without moving his legs. (00:06:35)
Revealing mistake: When the clogs splash on Sergeant Kooperman's face, the one from Mario's sink appears out of thin air. (00:07:50)
Revealing mistake: After Mario retrieves his Plumber's Helper, he is briefly layered over Princess Toadstool. (00:16:26)
Revealing mistake: When Misaki says he cannot break the chains, his air bubbles occasionally freeze. (00:09:45)
Revealing mistake: When Mario and his friends kick the Ninjis when being surrounded by them, one freezes in midair while another duplicates itself. (00:12:48)
Revealing mistake: When Karate Koopa catches Princess Toadstool and Toad trying to escape, his legs and part of Princess Toadstool's dress are cut off for a few frames. (00:13:49)
Revealing mistake: When Mario and his friends laugh at the end of the episode, Mario appears to be standing in midair. (00:16:54)
