Pupurin Twins vs Purin! Singing Pokémon Concert! - S5-E34
Continuity mistake: When the camera pans up as the Pokédex is giving facts on Igglybuff, Brittany is behind the Igglybuff twins, but in the next shot, she disappears. (00:02:27)
Pupurin Twins vs Purin! Singing Pokémon Concert! - S5-E34
Continuity mistake: When Ash uses his Pokédex, his right index finger is not in front of the end of his right thumb from the left, but in the next shot, it is. (00:02:20)
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.