Continuity mistake: When Tracey asks if Misty is coming with him and Ash, part of Misty's arms changes from skin-colour to yellow. (00:01:49)
Continuity mistake: When Misty steps on Tracey, Tracey's blue shoes turn black. (00:02:13)
Continuity mistake: When Ash throws a Poké Ball to catch Scyther, his bag disappears. (00:04:40)
Continuity mistake: When Lickitung runs into Victreebel, its pink eyebrows turn yellow. (00:17:15)
Continuity mistake: When Tracey recalls Scyther, the ring around the button on the Poké Ball disappears. (00:20:36)
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.