Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Jigglypuff notices that everyone fell asleep, Pikachu's tail changes from yellow with a brown base to brown with a yellow base. (00:18:24)
Continuity mistake: When Ash realises that something happened with Pikachu, his bag is below the second-highest plank on the bench, but in the next shot, it is aligned with it. (00:01:27)
Other mistake: When Pikachu's pain increases, his nose is missing. (00:01:51)
Continuity mistake: When Ash, Brock, and Misty rush to find a Pokémon Center for Pikachu because he has fainted, they leave their backpacks behind. When they arrive at the hospital, they suddenly have their backpacks with them. (00:02:26)
Continuity mistake: When Dr. Proctor says that he has been unable to refuse requests from young girls, the yellow clips on Misty's suspenders turn red like the suspenders. (00:03:22)
Audio problem: After Dr. Proctor says that he is off-duty, his mouth moves, but no sound can be heard. (00:05:39)
Factual error: When we see that Dodrio's neck is tangled, the configuration doesn't make sense. It just looks like two bands of neck, but it doesn't reflect what it would actually look like if it was really tangled.
Continuity mistake: Jessie seems completely surprised when she's told that Voltorb can explode, but in The Ninja-Pokemon Showdown (Season 1, Episode 32), not only did she and the others find out what Voltorb are, they were all affected by the explosions as well.
Audio problem: After Jessie says that Team Rocket has to investigate, Meowth speaks, but his mouth does not move. (00:02:07)
Continuity mistake: When Ash and friends turn to look at Growlithe's mansion, Brock's left bag goes from brown to red. (00:02:31)
So Near, Yet So Farfetch'd - S1-E47
Continuity mistake: When Team Rocket takes off in the boat, it sinks. Their pokeballs float away, and Jessie says "Arbok and Lickitung are floating away!" But she doesn't catch Lickitung until Princess Versus Princess (Season 1, Episode 52).
Suggested correction: It's because these episodes were aired out of order.
That's true because of Electric Soldier Porygon.
Who Gets to Keep Togepi? - S1-E48
Character mistake: At the beginning of the episode, the sign on the Pokémon Center misspells Pokémon Center as "Pokemon Center." (00:01:13)
Princess Versus Princess - S1-E50
Continuity mistake: When the announcer is discussing the competition this year for the Princess Festival, there is a poster behind him, but in the next shot, there is not. (00:06:57)
The Case of the K-9 Caper - S1-E52
Continuity mistake: When Officer Jenny is first with a tray with cups, the last character on the paper on the wall in front of the back wall to the left disappears between shots. (00:04:12)
The Case of the K-9 Caper - S1-E52
Continuity mistake: When zooming out on Officer Jenny when she is in the police station, there is no spatula on the wall, but in the next shot, a spatula appears. Also, the last character on the paper to the left changes. (00:04:15)
The Case of the K-9 Caper - S1-E52
Continuity mistake: When Ash retracts his hands after placing his chopsticks on his bowl, they are not pointing to a bowl, but in the next shot, they do. (00:04:51)
Continuity mistake: When Ash pushes Brock out of the way, Brock is facing towards him, but in the next shot, he is facing away from him. (00:02:15)
Revealing mistake: When Todd tells Ash to stop spraying him, his bag passes through his body. (00:03:10)
Continuity mistake: When Todd says Ash and his friends know of the photographer who took the only known photo of Aerodactyl, the black collar on Ash's shirt turns white. (00:04:21)
Revealing mistake: When Ash and his friends look at the picture of Aerodactyl in the book, Ash's left arm passes through the book. (00:04:43)
