Butch Mario & the Luigi Kid - S1-E3
Continuity mistake: When Kid Koopa is about to light a Bob-omb, the white spikes on his tail turn yellow. (00:16:58)
Continuity mistake: King Koopa orders 12 Pidgits to attack Mario's Carpet, but only 9 appear and attack the carpet. (00:14:17)
Continuity mistake: When Mario and his friends fly past King Koopa while he is with the genie, the black wheel on the back of their magic carpet turns yellow, while the yellow rim turns black. (00:15:47)
Rolling Down the River - S1-E5
Continuity mistake: When King Koopa says that he wants to capture the Mario Bros, part of his underbelly changes from yellow to green. (00:03:40)
Rolling Down the River - S1-E5
Continuity mistake: In one shot of Toad being thrown into the dungeon, his blue trousers turn white. (00:04:48)
Rolling Down the River - S1-E5
Continuity mistake: When the Koopa Troopas discover that Mario and Luigi cheated, Mario's gloves disappear. (00:05:29)
The Great Gladiator Gig - S1-E6
Continuity mistake: When Tryclydius says that he does not know why King Koopa has to tell him three times for him to understand, his red eyelids turn white like his eyes. (00:04:57)
The Great Gladiator Gig - S1-E6
Continuity mistake: When Toad reconsiders being called a creature, his red vest turns white, like his cap. (00:06:48)
The Great Gladiator Gig - S1-E6
Continuity mistake: When King Koopa falls into the arena, the rings around his shell's spikes are colored orange, like the spikes, instead of green. (00:15:49)
Mario and the Beanstalk - S1-E7
Continuity mistake: When Princess Toadstool tells Mario that someone very large lives in the castle, the white stripes on Mario's gloves turn blue like his shirt. (00:09:03)
Mario and the Beanstalk - S1-E7
Continuity mistake: When Mario and his friends try to escape through the window, the gate blocking the door disappears. (00:10:53)
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 Mario runs over to help Queen Rotunda, he has his cap on, but in the next shot, it disappears. (00:09:29)
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: In the scene where the Princess first has the idea for getting another love potion, the spots on Toad's head change to black then back to red. (00:14:12)
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: After Luigi says "Let's play cupid," he peeks around the corner along with Peach and Toad down at Mario going down the aisle with his "bride-to-be." Luigi, as expected, has been wearing green all episode, but when you see them peeking around the corner, Luigi's hat has become red. In the very next shot showing Luigi from behind, his hat has returned to green. (00:14:40)
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.
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)
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 the Mario Bros. pass King Koopa's minions after surviving the first trap, the lenses on Mouser's glasses disappear. (00:11:49)
