Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When a boy says, "You're the man, Damian," Damian's eyes are open with his arms crossed with his left arm over his right and his head not turned, but in the next shot, his eyes are closed with his right arm over his left and his head turned. Also, the arrangement of the Poké Balls on his table changes between shots. Additionally, Damian has a bag and does not have hair under his bridge, but in the next shot, the bag is absent and hair is under it. Furthermore, the smile of the boy to the left of him changes between shots. (00:06:18)
Here Comes the Squirtle Squad - S1-E12
Continuity mistake: When showing the inside of the store for the first time on the next day, there is no window two planks away from the left of the door, but in the next shot, there is. (00:13:50)
Continuity mistake: When Brock acknowledges that so many Pokémon have not been seen in one place before, the grass and dirt cover changes between shots. (00:00:32)
Continuity mistake: When Pikachu agrees after Ash says, "Yeah, that's it!" his body is facing towards the rock, but in the next shot, it is not. (00:00:10)
There's No Place Like Hoenn - S6-E3
Continuity mistake: In the shot before Ash says that he is hurrying to get to his match, the landscape changes between shots. (00:00:23)
The Startling Yamirami! - S6-E29
Audio problem: When Ash asks what happened with Corphish, his mouth does not move. (00:15:05)
Cutting the Ties That Bind! - S9-E18
Continuity mistake: When Ash goes over a rock, the rock is at his left foot, but in the next shot, it is not. (00:12:43)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the second part of May's flashback of what Grace said, she says, "The one thing to remember above all else and without it you'll never win. Use the power of your Pokémon completely," but in the shot where this takes place, she says, "The one thing to remember above all else is that you'll never be able to win until you can use the power of your Pokémon completely." (00:15:21)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the first part of May's flashback of what Grace said, Grace says, "The most important thing is..." but in the shot where this takes place, she says, "But, the most important thing..." (00:15:18)
The Pokémon Water War - S2-E25
Continuity mistake: When people are first running, Tracey has his head turned, but in the next shot, it is not. (00:01:07)
Evolution! That Mystery and Wonder!! - S8-E50
Other mistake: When Ash and friends are first in the laboratory, Pikachu's right cheek pouch is missing. (00:03:13)
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)
Revealing mistake: When Nurse Joy is in the emergency room, a light is floating in midair without being attached to anything. Also, a left door goes from being absent to being present. (00:06:31)
The Ghost of Maiden's Peak - S1-E20
Continuity mistake: When Ash asks, "You remember where we're staying tonight, right?" Brock's bag is on dirt, but in the next shot, it is on grass. (00:08:37)
Continuity mistake: When Brock says, "They're training, all right," Max's head is not turned, but in the next shot, it is. Also, May's hands are closed and have their front at her sides, but in the next shot, they are open and have their back at her sides. (00:03:20)
Continuity mistake: When Ash and Brock head over to the left side of the boat after hearing Max and May from the water, the door to the right of therm has no handle, but in the next shot, it has one. (00:06:00)
Enter Manene! Mansion of Rest! - S9-E2
Other mistake: When James says, "Besides, I'll stay here tonight and keep an eye on things," Munchlax's feet are mistakenly coloured blue instead of yellow. (00:11:44)
Continuity mistake: When Ash asks, "What are you talking about?" the left page May is on goes from having a rectangle that is four centimetres wide to having one that is two centimetres wide. Also, the lights on the ceiling move further apart between shots. (00:00:31)
Continuity mistake: When Max says, "That's so cool, Ash," Ash's left index finger goes from not being completely covered by his badge case to being completely covered by it. (00:00:03)
The Greatest Pelipper in History! - S6-E10
Continuity mistake: When Brock says, "The Gym with the world's most powerful Pokémon just ahead," his body faces towards the sign, but in the next shot, it faces Ash. (00:01:50)
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.