Other mistake: When Brock says, "Yeah. The season of love is when Butterfree lay their eggs," two Butterfree occasionally are missing feet, and another one occasionally has a part of its wings mistakenly colored black instead of white. (00:01:49)
Abra and the Psychic Showdown - S1-E22
Other mistake: When Ash says, "Without a Marsh Badge, I can't get into the Pokémon League!" the strips on Pikachu are missing. Also, Ash does not have gloves, but in the next shot, he does. (00:07:11)
Other mistake: When Ash and friends are first seen when a Ghost Pokémon laughs, the base on Pikachu's tail is missing. (00:07:47)
The Ninja Poke-Showdown - S1-E32
Other mistake: When the floor in the slanted room tilts, Ash and his friends tilt, but the trapdoor does not. (00:15:19)
Other mistake: When the camera pans across the Pikachu when they are surprised, one of them is missing its cheek pouches while another is missing its left one. (00:03:06)
The March of the Exeggutor Squad - S1-E41
Other mistake: The Pokemon Exeggcute is shown evolving in to an Exeggutor naturally. But the Pokemon Exeggcute can only evolve into an Exeggutor with the use of a leaf stone. In the Japanese version, there is a mention that something in these woods causes Exeggcute to evolve without using the Leaf Stone (when Exeggcute evolves, James even mentions that there is no stone). However, as this was skipped in the English version, it creates a plot hole.
Other mistake: When Pikachu's pain increases, his nose is missing. (00:01:51)
Other mistake: When Todd says Ash and his friends are on time, his camera is in front of them despite him hiding from the side. (00:13:09)
Other mistake: Assunta's Ivysaur attacks Sparky too early, before the battle even started, not to mention Assunta haven't given it any commands during the battle.
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.