Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Ash and his friends are surprised, Charmeleon starts evolving. The black straps on Brock's bag turn green like his vest. (00:15:44)
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Jigglypuff notices that everyone fell asleep, Pikachu's tail changes from yellow with a brown base to brown with a yellow base. (00:18:24)
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Ash says that Charmeleon still will not obey him, the green straps on his bag turn blue like his jacket. (00:11:06)
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: During Team Rocket's motto, James' purple belt briefly turns white, like his trousers. (00:04:04)
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.