Revealing mistake: When Ash and his friends look at the picture of Aerodactyl in the book, Ash's left arm passes through the book. (00:04:43)
Continuity mistake: When Todd says he will make sure to capture Pikachu's best side, his gloves appear. (00:05:55)
Continuity mistake: When Brock says Todd has a talent for photographing Pokémon, the yellow strap on Todd's camera turns black like the camera. (00:07:51)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When Brock tells Sabrina to turn him and Misty back into humans, his left sleeve changes from orange to green. (00:13:57)
Continuity mistake: When Todd says Ash and his friends know of the photographer who took the only known photo of Aerodactyl, the black collar on Ash's shirt turns white. (00:04:21)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When Ash is looking at the photo of Sabrina, his glove disappears. (00:08:22)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When Team Rocket removes their disguises, James' gloves disappear. (00:10:06)
Abra and the Psychic Showdown - S1-E22
Continuity mistake: When Team Rocket shows Pikachu, the number of fingers Meowth has on each hand changes from three to four. (00:05:18)
Abra and the Psychic Showdown - S1-E22
Continuity mistake: When Pikachu is confused about Abra's strategy, the brown stripe on Abra's tail turns cream. (00:11:14)
Island of the Giant Pokemon - S1-E17
Other mistake: When Ash and his friends are about to hit the Zapdos robot, its body is missing, and shortly after, Pikachu's cheek pouches disappear. (00:18:42)
Island of the Giant Pokemon - S1-E17
Continuity mistake: Right before the Blastoise robot is knocked down, its lower jaw changes from cream to blue, while the inside of one of its ears changes from black to blue. This also happens when the destroyed robots are shown. (00:18:18 - 00:19:23)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Team Rocket says they cannot stop the cart, Jessie's gloves go past her elbows, but when the cart enters the loop, they do not. In the same shot, Misty's bag disappears. (00:17:38)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When the cart is in the loop, Jessie's gloves go past her elbows, but when Meowth explains how he managed to jump onto the cart, they do not. (00:18:15)
Island of the Giant Pokemon - S1-E17
Other mistake: When Jessie says she cannot stand roller coasters, part of the background is coloured in like her hair. (00:17:26)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Ash and his friends see the giant Pikachu, Misty's bag is on her right shoulder, but when the bridge collapses, it is on her left. (00:16:38)
Island of the Giant Pokemon - S1-E17
Revealing mistake: When Jessie first saw pulling the cable, the phone is not fully coloured in, and the background can be seen through it. (00:13:08)
Island of the Giant Pokemon - S1-E17
Revealing mistake: When Team Rocket is about to use the brakes in the cart, Jessie disappears from the cart, but her outline is still there. In the same shot, James overlaps her. Additionally, the cart is moving forward, but after Team Rocket breaks the brakes, it is moving backward. (00:16:09)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Jessie's image appears after Ekans says it only obeys its master, her blue eyes turn white. (00:06:46)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Koffing and Ekans refuse to attack, and when Ekans explains that Pokémon only do bad things because of their masters, the yellow stripe on its underbelly turns purple like the rest of its body. (00:06:28 - 00:07:10)
Other mistake: When Meowth shifts his eyes from his book about the trophy to the trophy, he has five lines on his charm instead of four. (00:04:11)
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.