Continuity mistake: While Mario is on the hose, its colour and design changes several times. (00:10:03 - 00:10:49)
Continuity mistake: When Toad tells Luigi to come over to him, the valve is blue, but when Princess Toadstool turns it, it turns brown. Shortly afterward, the pipe and hose change from blue to brown. (00:08:29)
Continuity mistake: During the fight in the tower, the Boomerang Bros. change colour several times. (00:08:40)
Continuity mistake: When King Koopa orders the Fire Chomps to attack, the orange spikes on his shell and his yellow eyes turn white. In the same shot, Cheatsy's green head turns orange while his green eyelids turn black. (00:09:00)
Continuity mistake: When Kassanova Koopa reverts to his true form, Kootie Pie has her wand, but in the next shot, it disappears. (00:08:02)
Continuity mistake: When Mario says everything is set, the pipe is brown, but in the next shot, it turns blue. (00:08:13)
Continuity mistake: When Mario jumps out of the pipe, his black hair and mustache turn brown. (00:06:09)
Continuity mistake: When Kassanova Koopa hugs Kootie Pie, his yellow eyes turn white. (00:07:06)
Continuity mistake: When Mario's friends are going into the dungeon, the green trims on Lady Fetuccini's dress turn pink. In the same shot, her bracelets disappear. (00:04:40)
Continuity mistake: When Kootie Pie pulls the lever, her cream underbelly turns white. (00:05:11)
Continuity mistake: When Cheatsy and Kootie Pie are looking at Mario's friends, their cream snouts turn the same colour as their heads. (00:05:58)
Revealing mistake: When King Koopa says that he hears Kootie Pie, part of his mouth disappears. (00:02:08)
Continuity mistake: When King Koopa tells Kootie Pie to stop the Mario Bros, the top of Kootie Pie's wand changes from purple to blue, while its handle changes from white to pink. (00:02:20)
Continuity mistake: When Lady Fetuccini puts her fork down, it is layered in front of her bowl. (00:04:25)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When the White House rises from the sea, the pipes on the sides disappear. (00:07:24)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: While Mario and Luigi are in their disguises, their helmets change from green to white several times. (00:07:54 - 00:08:45)
Reptiles in the Rose Garden - S1-E1
Factual error: When Mrs. President closes the doors, there is a crack between them, but no water pours through it. In the same shot, the water only pours from the bottom of the doors despite the White House being completely underwater. (00:06:55)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: In this episode, Hop's sclerae are coloured blue instead of white.
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When Luigi asks if the disguises will allow him and Mario to board King Koopa's Doomship, one of Mario's suspenders disappears. (00:07:57)
Reptiles in the Rose Garden - S1-E1
Continuity mistake: When Luigi asks how they can help the US if they cannot help themselves, Mario and Toad are in front of Princess Toadstool, but in the next shot, they are behind her. (00:03:53)
