Electric Shock Showdown - S1-E14
Continuity mistake: When Ash picks up the Thunder Stone, his belt buckle is brown and black, but in the next shot, it is instantly grey and black. (00:11:13)
Electric Shock Showdown - S1-E14
Continuity mistake: After Pikachu dodges Raichu's first Body Slam, Jessie's green earrings turn blue. (00:16:53)
Electric Shock Showdown - S1-E14
Continuity mistake: When Ash says Pikachu might be able to beat Lt. Surge, part of the white bow on Nurse Joy's apron turns pink like her dress. (00:11:22)
Electric Shock Showdown - S1-E14
Continuity mistake: When Nurse Joy says she looks like the other Nurse Joys, Misty's red suspenders turn blue and her bag disappears. (00:02:13)
Electric Shock Showdown - S1-E14
Continuity mistake: When Ash realizes that he is hungry, his bag disappears. (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.