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Island of the Giant Pokemon - S1-E17
Continuity mistake: When Jessie says, "Well, you can use a good workout," the window frame in front of her and James is black, but in the next shot, it is instantly cream. (00:13:31)
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Island of the Giant Pokemon - S1-E17
Continuity mistake: When James says, "Look over there!" there is a phone booth with no wire attached to it, but in the next shot, a wire is attached. (00:03:21)
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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)
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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)
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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)
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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)
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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)
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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)
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.