Continuity mistake: Throughout its appearance, the grey sideskirts on Mario and his friends' car turn brown like the rest of the car several times. (00:03:44 - 00:09:06)
Revealing mistake: When Mario and his friends start running to the drainpipe, Drainotto runs in place for a few frames. In the same shot, Toad briefly runs in midair, and shortly after, he is layered underneath a rock. (00:13:18)
Continuity mistake: Throughout the episode, the white spikes on King Koopa's tail are coloured orange instead.
Revealing mistake: When Mario shoots fireballs at Koopa Khan and his army, a fire is layered over a Snifit. (00:12:48)
Continuity mistake: When Mario and his friends look at Koopa Khan while on the bridge, Princess Toadstool does not have a cape. But when she and her friends fall after Koopa Khan destroys the bridge, one appears. (00:10:49)
Continuity mistake: When Drainotto says that he could make an underground river with some help, the number of fingers he has on each hand changes from five to four. (00:07:46)
Audio problem: When Mario and Luigi are excited to return to Brooklyn, Mario's mouth moves, but no sound can be heard. (00:07:26)
Continuity mistake: When Toad puts his cap back on, his torso changes from skin-colour to blue, while his trousers change from blue to skin-colour for a few frames. (00:04:59)
Continuity mistake: When Moon Man Koopa first appears, he has no wristbands, but when he activates a magnet, some appear. (00:08:10)
Audio problem: After the missile flies over Mario and his friends, Toad's mouth moves before any dialogue comes out. (00:07:03)
Revealing mistake: When Mario tells Toad to grab him, Toad is not fully drawn. (00:04:27)
Continuity mistake: After Princess Toadstool says that King Koopa tricked the Mario Bros, King Koopa's yellow eyes turn white. This also happens after Toad says that the Mario Bros. are safe. (00:09:39 - 00:10:18)
Continuity mistake: When King Koopa first appears, he has two Koopa Troopas with yellow underbellies. But when Princess Toadstool says that he tricked the Mario Bros, one of the Koopa Troopa's underbellies turns purple. (00:09:34)
Revealing mistake: When Princess Toadstool spots King Koopa, King Koopa and his minions are layered over a wall. (00:07:14)
Continuity mistake: When the Mario Bros. pass King Koopa's minions after surviving the first trap, the lenses on Mouser's glasses disappear. (00:11:49)
Love 'Em and Leave 'Em - S1-E8
Revealing mistake: After Luigi pours the love potion, Mario's arms are missing for a few frames. (00:15:45)
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: When Queen Rotunda says she will never find the perfect desert for Prince Pompadour, the yellow trims on her dress turn blue. This also happens when she says that Mario's ice cream looks delicious. (00:08:19 - 00:09:05)
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: When Princess Toadstool says that she and her friends are breaking out of the dungeon, the number of fingers Luigi has on each hand switches from five to four. (00:11:49)
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: Throughout the episode, the number of fingers Queen Rotunda has on each hand switches between four and five several times.
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: When Mario runs over to help Queen Rotunda, he has his cap on, but in the next shot, it disappears. (00:09:29)
