Continuity mistake: In this episode, Hop's eyelids are black instead of green.
Revealing mistake: When Luigi asks what show he and Mario will be in, their eyes are mostly closed. (00:06:09)
Continuity mistake: When the Marios look at each other after Mario mentions that the cave people are storming the castle, the white stripes on Mario's gloves turn blue, like his shirt. (00:05:52)
Continuity mistake: When Mario asks, "How much do the television sets cost?", Luigi's green eyes turn blue. (00:03:03)
Continuity mistake: When King Koopa introduces "Rock Rock Baby," Luigi's green cap and overalls turn red. (00:02:36)
Gopher Bash - S1-E9
Continuity mistake: When Cheatsy picks up a coin from the piggy bank, it is blue like the bank, but after he stands up, it turns yellow. (00:08:19)
Gopher Bash - S1-E9
Revealing mistake: When Cheatsy stands up after picking up the coin, the broken piggy bank disappears into thin air. (00:08:18)
Revealing mistake: When Mario and his friends run over to the giant television, Princess Toadstool and Yoshi can be seen appearing out of thin air. (00:01:32)
Gopher Bash - S1-E9
Continuity mistake: When Cheatsy is surprised by Mario and his friends, the stripes on his eyelids disappear. (00:08:36)
Gopher Bash - S1-E9
Continuity mistake: When Mario lands on a Magic Balloon, the number of fingers he has on each hand switches from five to four. (00:06:52)
Gopher Bash - S1-E9
Continuity mistake: When the screen pans to Cheatsy in a tunnel, the white rim on his shell turns orange like his body. (00:03:04)
Gopher Bash - S1-E9
Revealing mistake: When Mario walks over to Luigi after the flood, his feet pass through the hill he is on. (00:03:38)
Gopher Bash - S1-E9
Continuity mistake: After King Koopa agrees with Cheatsy's plan, Cheatsy's orange tail turns white like the rim of his shell. This also happens when he watches Luigi and Yoshi get washed away by the flood. (00:02:24 - 00:03:33)
Gopher Bash - S1-E9
Audio problem: When the cave people pour water on the ground, the sound effects stop briefly. (00:03:25)
Gopher Bash - S1-E9
Continuity mistake: When Luigi gives Yoshi some seeds, his blue shirt turns green. (00:02:33)
Gopher Bash - S1-E9
Continuity mistake: When Cheatsy suggests to King Koopa to steal all of the crops, the white rim on his shell turns green. (00:02:04)
Party Line - S1-E8
Continuity mistake: When Luigi says it is his and his friends' chance to bring things back to normal, the white stripe on his right glove turns blue for a few frames. (00:09:34)
Party Line - S1-E8
Continuity mistake: When Mario pulls on the giant dinosaur's tail, its lower jaw changes from orange to purple. This also happens when he is about to launch it into space. (00:08:06 - 00:09:08)
Party Line - S1-E8
Continuity mistake: When Mario and his friends are scared by the giant dinosaur, Princess Toadstool's orange eyebrows turn black. (00:07:31)
Party Line - S1-E8
Continuity mistake: When Mario is holding off a caterpillar, the white stripes on his gloves turn blue, like his shirt. (00:06:20)