Alola! The Starting Island, the Starter Pokémon!! - S20-E1
Continuity mistake: After Ash tells Delia what he did at the beach, Delia's bracelet disappears. This also happens after the flashback of Ash receiving the Egg. (00:03:00 - 00:03:51)
Other mistake: Assunta's Ivysaur attacks Sparky too early, before the battle even started, not to mention Assunta haven't given it any commands during the battle.
Flower Power - S3-E6
Continuity mistake: When the person giving flyers says, "It's a giant outdoor Pokémon entertainment festival!" there is a man in the background with a blue shirt, but in the next shot, he has a yellow one. (00:01:58)
Mystery at the Lighthouse - S1-E13
Other mistake: When Professor Oak goes to rotate his monitor, his right index finger is intermittently not coloured in. (00:09:15)
The Battling Eevee Brothers - S1-E38
Continuity mistake: When Pikachu and Eevee are first talking, the beam closest to the screen is smaller than the others, but in the next shot, it is larger. Also, there is a tree to the left of Pikachu, but in the next shot, there is not. Additionally, Pikachu is next to the plate of food while Eevee is one centimetre away from it, but in the next shot, he is two centimetres away from it while Eevee is three centimetres away. (00:09:48)
The School of Hard Knocks - S1-E9
Revealing mistake: In the English dub, when showing the front of the flyer, it has filler text that is not related to what it is about. Also, its Poké Balls are slightly transparent and its picture can be seen through it. (00:05:43)
Pokemon, I Choose You! - S1-E1
Other mistake: When Pidgey turns its head to see Ash with a Poké Ball, its head feathers beside its eyes are mistakenly coloured cream instead of brown. (00:11:36)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Jessie says, "Well, you can use a good workout," the window frame in front of her and James is black, but in the next shot, it is instantly cream. (00:13:31)
Haruka Travels Through Time!! - S9-E12
Revealing mistake: When Edna gets her parasol, it teleports to her. (00:05:34)
The Fourth Round Rumble - S1-E77
Character mistake: When Officer Jenny orders her Growlithe to attack Team Rocket's balloon, she refers to Growlithe as Arcanine. [This mistake happens only in the English version. In the Japanese version she refers to Growlithe correctly.]. (00:12:21)
What You Seed Is What You Get - S7-E1
Other mistake: When Poliwrath first appears in the Pokémon Trainer's Choice, its swirl mistakenly faces clockwise instead of counterclockwise. (00:12:13)
Hiwada Town! Yadon's Well!! - S3-E26
Continuity mistake: When Misty says, "I bet it hasn't rained here in months," Brock is holding the map towards the bottom, but in the next shot, he holds it in the middle. (00:07:18)
Hinoarashi! Catch It!! - S3-E25
Continuity mistake: When Misty asks, "Ash?" the combination of the grass and dirt changes. (00:02:26)
Continuity mistake: When Ash is walking to the torchbearer, the people in the background change. (00:03:32)
Continuity mistake: When Ash first uses his Pokédex to learn facts on Snorlax, his right index finger is aligned with another one, but in the next shot, it is not. Also, his right ring finger is not aligned with another one, but in the next shot, it is. (00:07:40)
Big Panic! Kimawari Contest!! - S3-E19
Continuity mistake: When Ash says, "Water!" the puddle near the one under the leaking pipeline is more to the left of it, but in the next shot, it is more to the right of it. (00:01:40)
Continuity mistake: When Ash says, "Misty'll take good care of your Marill, you'll see," Wilhomena is holding her parasol with on hand, but in the next shot, she is holding it with two. (00:09:16)
Suggested correction: I rewatched the shots, and Wilhomena is holding her parasol with both hands in both of them.
Kikyo Gym! Sky Battle!! - S3-E15
Continuity mistake: When Pikachu agrees after Ash says, "Someday, I'll go back and see my old friend," his mouth is open, but in the next shot, it is closed. Also, Brock is to the left of Ash, but in the next shot, he is not. (00:06:32)
The Ninja Poke-Showdown - S1-E32
Continuity mistake: When Misty asks, "Brock, what kind of crazy place is this?" her bag is under and next to her, but in the next shot, it's not under her and is 0.33 metres away from her. (00:03:24)
Dai Pinch! Madatsubomi no tô - S3-E14
Continuity mistake: When Zacky is excited to meet Ash, Lizzie's mouth is open, but in the next shot, it is closed. (00:02:50)
