The Ninja Poke-Showdown - S1-E32
Factual error: When Venonat uses Stun Spore, Ash tells Bulbasaur to use Whirlwind. Bulbasaur just blows the powder away with his mouth, but he doesn't use the Whirlwind attack. He can't learn Whirlwind in any of the games, and what Whirlwind is supposed to do is to blow the opposing Pokemon away. Ash could have just as easily told Bulbasaur to blow it away, but he instead chose to tell him to use a move that he can't possibly learn. The only Pokemon that can learn Whirlwind are either Flying types or Bug types; i.e., Pokemon with wings (with the exception of Makuhita and Hariyama, which weren't introduced until generation III, and did not exist at the time this episode aired). In The School of Hard Knocks (Season 1, Episode 9), a character mentions information regarding a Pokemon's levels, attacks, and information which is taken straight out of the game, so it's very clear that Bulbasaur should not be able to use Whirlwind. [This is a result of mistranslation. In the original, Japanese version Ash orders Bulbasaur to "blow it away." He didn't say Whirlwind. Still a mistake in the English version.]
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.
Flower Power - S3-E6
Factual error: During the second battle with Team Rocket, Arbok and Victreebel use Tackle, a move they cannot legally learn in the games. (00:18:15)
Suggested correction: Differences between anime and games are not mistakes.
Pokémon Contest! Hajitsuge Convention! - S7-E10
Factual error: During the battle with Team Rocket, Beautifly uses Tackle. However, it was unable to learn it until Generation VIII. This episode, a Generation III episode, would mean that at this point in time, Beautifly was unable to learn it by any means. (00:19:57)
Suggested correction: Differences between anime and games are not mistakes.
Factual error: During the second battle with Team Rocket, Victreebel uses Tackle on Ash and his friends. However, it cannot legally learn it in the Pokémon games. (00:18:18)
Suggested correction: Differences between anime and games are not mistakes.
Factual error: It is stated in this episode that Ghost types are strong against Psychic Pokémon. However, in Generation I, Psychic types were only weak to Bug-type attacks. It is also implied that Ghost-type Pokémon are immune to Psychic-type attacks. However, they actually take normal damage from Psychic-type attacks.
Pokemon Fashion Flash - S1-E28
Factual error: When Misty looks at herself in the mirror, her reflection is not reversed. (00:12:41)
Factual error: When Jessie says she was a costume designer, her left foot is curved up, but her reflection shows it to be her right. (00:05:54)
Factual error: When the power in the lift goes out, all of the lights turn off. However, in real life, some of these lights would remain on for emergency lighting. (00:04:28)
Factual error: When the lift starts working again, the cables on one side of the lift are being pulled downward while the ones on the other side remain in place. However, lifts are pulley systems; if one end is pulled down, the other end is pulled up. (00:05:24)
