Mystery at the Lighthouse - S1-E13
Continuity mistake: When Bill asks, "Who's there?" the intercom on the doorbell changes from blue to black. (00:06:38)
Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When Damian says, "Just look at 'em," the pile of Poké Balls changes. (00:06:07)
Revealing mistake: When Ash goes to save the Pikachu in the river, he clips through his and Misty's bags. (00:05:25)
The Water Flowers of Cerulean City - S1-E7
Revealing mistake: In the localizations, when Ash and Brock begin running to the crime scene, part of the top of Ash is missing. (00:04:25)
Other mistake: When Ash and friends are first seen when a Ghost Pokémon laughs, the base on Pikachu's tail is missing. (00:07:47)
Other mistake: When Brock says, "Yeah. The season of love is when Butterfree lay their eggs," two Butterfree occasionally are missing feet, and another one occasionally has a part of its wings mistakenly colored black instead of white. (00:01:49)
Revealing mistake: As Ash, Misty, and Tracey are making their way through the crowd, Tracey clips through one of the people in it. (00:05:33)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Ash is first talking with Professor Oak, he does not have his rucksack, but in the next shot, he does. (00:05:25)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When people are watching the St. Anne sink, some of them are constantly changing colour. (00:19:56)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When people are watching the St. Anne rock, some of them are constantly changing colour. (00:19:36)
League Finals! Full Battle 6 vs 6!! - S5-E60
Continuity mistake: When Ash and Brock are at a table, the front Ash's hat is red, and the back is white, but in the next shot, the front of it is white, and the back is red. (00:09:28)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When the doors to the lighthouse are initially opening, the placement of the Pokémon on them change between shot. (00:08:09)
Continuity mistake: When Ash, Misty, and Nurse Joy enter the storage room, Nurse Joy's left hand is not behind Ash, but in the next shot, it is. Also, the floor changes from a yellow floor that is not tiled to a green floor that is tiled. (00:14:15)
The Ninja Poke-Showdown - S1-E32
Revealing mistake: When Pikachu turns his head after a Venonat leaves, his left ear clips through Ash. Also, part of Ash's right leg is missing. (00:03:46)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Ash says, "I got it," there is no doorbell on Bill's Lighthouse, but in the next shot, there is. (00:07:17)
Clefairy and the Moon Stone - S1-E6
Other mistake: When the camera begins panning back to show Seymour, Ash, Butterfree, Zubat, and Brock, Pikachu's mouth is missing. (00:11:18)
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)
Don't Touch That 'dile - S3-E1
Continuity mistake: When Professor Elm says, "So I suppose you know Professor Samuel Oak,"Misty's and Brock's mouths are open, but in the next shot, they are closed. (00:09:43)
Continuity mistake: When Lily says, "The water show," her right hand is outstretched, but in the next shot, it is by her right side. (00:03:58)
Challenge of the Samurai - S1-E4
Continuity mistake: When Ash goes to get a Poké Ball for the first time, the ball is upside down, but in the next shot, it is upright. Also, behind the same Poké Ball, there is another one, but in the next shot, there is not. (00:03:19)
Answer: He is a good guy but just found himself in a bad situation when he worked for Lysander. He didn't want him to harm Ash and his Pokémon when he was trying to get the special bond between Ash and his Greninja to work. He does leave Lysander and go back to being a good person.