Continuity mistake: When Ash says, "We gotta make sure we don't get separated," Misty's right arm is violet, but in the next shot, it is skin-colour. (00:01:32)
Mystery at the Lighthouse - S1-E13
Revealing mistake: When first showing Ash and friends at the top of the lighthouse, Pikachu is floating in midair. (00:15:00)
Continuity mistake: When Ash reaches the Pokémon Fan Club building, there are cream bricks outside the doors, but in the next shot, they disappear. Also, the right doorknob is aligned with the top of the panels, but in the next shot, they are not. Additionally, the bottom right pane of the right door is aligned with the top of the second part of the right column, and it is more to the bottom of the bottom panes, but in the next shot, they are not. (00:08:47)
Continuity mistake: When Officer Jenny says that she and the crew had initially thought that everyone had left the ship safely, there is no crew, but in the next shot, it appears. (00:01:43)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Ash asks Professor Oak if Krabby is all right, Professor Oak's coat goes from white to red with the pot going from brown to grey. Additionally, the background changes design between shots. Furthermore, a bowl, a ladle, and a spoon go from being present to vanishing. Moreover, the camera view goes from being aligned with Professor Oak to not with his left-hand going from being lowered to being raised. (00:08:51)
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 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)
The Flame Pokemon-athon! - S1-E33
Continuity mistake: When Ash says that he cannot ride Ponyta for Lara, his arms are outstretched, but in the next shot, they are at his sides. (00:08:30)
Pokemon, I Choose You! - S1-E1
Continuity mistake: When Pikachu uses Ash's Pokédex for facts on where Pokémon want to reside, Ash's right fingers are covered by it, but in the next shot, they are not. (00:10:19)
Pokemon, I Choose You! - S1-E1
Continuity mistake: When Ash and Misty turn to look at the flock, Misty is pointing her right index finger away behind her, but in the next shot, she points it in front of her. (00:16:41)
Pokemon, I Choose You! - S1-E1
Continuity mistake: When Misty turns to look at her bicycle, the left pedal on it is higher than the right one, but in the next shot, it is lower than it. (00:16:43)
Showdown in Pewter City - S1-E5
Continuity mistake: When Ash says, "That's a great idea!" Flint's right arm is turned towards his right side, but in the next shot, it is turned forward. (00:10:12)
Continuity mistake: When Pikachu agrees after Professor Oak says, "That's the spirit!" he is on one tile, but in the next shot, he is on two. (00:11:08)
The Water Flowers of Cerulean City - S1-E7
Continuity mistake: When Brock asks, "Shouldn't you head for Cerulean City Gym?" a street lamp goes from being present to being absent. (00:06:14)
Continuity mistake: When Ash first uses his Pokédex, the top two fingers on the left side are together, but in the next shot, the bottom two fingers on the side are together. (00:07:35)
Continuity mistake: When Ash agrees to the fact that this is his first time at a Pokémon League, the front part of his hat does not go past the visor, but in the next shot, it does. (00:02:39)
Revealing mistake: When one of the staff of the Pokémon League goes over to type on the keyboard, she clips through a device in the process. (00:02:40)
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.