Continuity mistake: When Tracey says, "There'll be guards everywhere now," Misty is behind Ash, but in the next shot, she is not. (00:10:31)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Brock says, "Uh, excuse us, sir, but we're travelers and we're lost," the straps of his sleeping bag are blue, but in the next shot, they are black. Also, he is next to a picture of a Drowzee, but in the next shot, he is not. (00:07:48)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Brock says, "Yeah, and there'll be somebody to tell us where we are," the straps of his rucksack are not next to his sleeves, but in the next shot, they are. (00:06:57)
All Things Bright and Beautifly! - S6-E13
Revealing mistake: When Ash opens a door, Pikachu's tail clips through the doorway and wall. (00:11:26)
Mystery at the Lighthouse - S1-E13
Other mistake: When Ash and friends are first seen walking on a path, Pikachu's cheek pouches are missing. (00:01:14)
The Battling Eevee Brothers - S1-E38
Continuity mistake: When Mikey asks, "Running away?" the area around Misty's shorts is coloured blue, but in the next shot, it is coloured yellow. (00:09:24)
Continuity mistake: When Ash asks, "Posters?" the posters of a boy with an orange shirt and the one to the right of it are four centimetres apart and are wider than half the length of them, but in the next shot, they are two centimetres apart and are as wide as half the length of them. Also, the one to the right of the poster of a boy with an orange shirt has a green background, but in the next shot, it has a green and grey background. (00:02:32)
Pokemon Scent-sation! - S1-E26
Continuity mistake: When Erika asks if she is overcharging her customers for inferior perfume, there is a sign, but in the next scene, there is not. Also, there is a poster below the top of a doorway with a ring pointing to the left of it, but in the next scene, it is above the doorway with its ring pointing to the right of it. Additionally, there is a plant next to the poster, but in the next scene, it disappears. (00:02:36)
Other mistake: When the camera pans across the Pikachu when they are surprised, one of them is missing its cheek pouches while another is missing its left one. (00:03:06)
Continuity mistake: When Brock says, "Yeah, I don't think too many people come this far into the forest, Ash," there is a tree with three branches directly emerging from its trunk, but in the next shot, it has two. (00:05:03)
The Path to the Pokemon League - S1-E8
Continuity mistake: When A.J. says, "Of course, the recipe is secret," his right arm is raised while his left hand is at his side, but in the next shot, his right arm is at his side while his left hand is raised. Also, some of the jars behind him are 75 percent filled and have Pokémon on their labels, but in the next shot, they are filled halfway and do not have Pokémon on their labels. (00:10:45)
Pokemon, I Choose You! - S1-E1
Revealing mistake: When the second crowd is cheering, a woman's dress is not fully coloured in. (00:07:35)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When Ash and friends are first looking at the St. Anne, Ash's rucksack has a strip, but in the next shot, it does not. (00:03:54)
Mystery at the Lighthouse - S1-E13
Revealing mistake: When the costume's right arm falls off, the shell is not fully coloured in. (00:12:32)
Mystery at the Lighthouse - S1-E13
Audio problem: When Ash and friends are turning their heads to look at the lighthouse, footsteps are heard, but they are not moving. (00:07:14)
Continuity mistake: When Nurse Joy says that it is not necessary for Team Rocket to be at the Pokémon Center, James', Jessie's, Meowth's, Ekans', and the stairs' positions change. Also, the way Ekans is curled up changes. Additionally, Jessie's right earring goes from being present to being absent. (00:13:44)
Audio problem: When Officer Jenny says, "Let's see. If you're the real deal..." her mouth does not open. (00:03:21)
Continuity mistake: When Professor Oak is raising his right arm for the first time, his right sleeve intermittently goes from having two buttons to having one. (00:09:19)
Pokemon, I Choose You! - S1-E1
Continuity mistake: When Professor Oak is getting Pikachu's Poké Ball, the platform it is on is in one piece, but in the next shot, it is in two pieces. (00:06:43)
Mystery at the Lighthouse - S1-E13
Revealing mistake: As Krabby's Poké Ball begins wobbling, the light on it briefly shifts to the left. (00:04:36)
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.