Continuity mistake: When Arielle lands on the bridge, she is on two planks, but in the next shot, she is on one. (00:03:49)
Continuity mistake: When Lickitung uses Supersonic, Misty's bag disappears. (00:09:27)
Continuity mistake: When the Ledyba swing Arbok into Lickitung and Victreebel, the inside of the rings on Lickitung's knees changes from pink to yellow. (00:18:36)
Continuity mistake: When Lickitung and Victreebel approach Ash and his friends, Misty's suspenders disappear. In the same shot, her bag switches from her right shoulder to her left. (00:17:47)
Continuity mistake: When Team Rocket starts flying with the Ledyba, the tips on Meowth's feet disappear. (00:14:24)
Continuity mistake: When Ash and his friends watch the Ledyba fly away, Misty's bag is on her right shoulder, but in the next shot, it is on her left. (00:10:15)
Continuity mistake: When Ash says that there has to be another way to cross the river, the white stripe on his bag disappears. (00:02:46)
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.