Pokemon, I Choose You! - S1-E1
Audio problem: When Delia Ketchum says, "Oh, Ash, I'm so proud of you," the items that the Pallet Town townspeople are holding aren't being moved, however, the sound from banging of those items is heard. (00:07:35)
Continuity mistake: When Ash is walking to the torchbearer, the people in the background change. (00:03:32)
Continuity mistake: When Ash first uses his Pokédex to learn facts on Snorlax, his right index finger is aligned with another one, but in the next shot, it is not. Also, his right ring finger is not aligned with another one, but in the next shot, it is. (00:07:40)
The Ninja Poke-Showdown - S1-E32
Continuity mistake: When Misty asks, "Brock, what kind of crazy place is this?" her bag is under and next to her, but in the next shot, it's not under her and is 0.33 metres away from her. (00:03:24)
Continuity mistake: When Ash and friends turn to look at Growlithe's mansion, Brock's left bag goes from brown to red. (00:02:31)
Charmander: The Stray Pokemon - S1-E11
Revealing mistake: When Brock passes Misty when he leaves the table she is at, he clips through her and the stool she is sitting on, and after he does, part of the former is missing. (00:07:08)
Continuity mistake: When Ash says, "Isn't it cute?" the strip on his left shoe to the left of the shoelaces there is white, but in the next shot, it is black. (00:04:12)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When James asks, "Are you addressing me?" the people behind him change. (00:08:52)
Continuity mistake: When Officer Jenny says, "It's here for the raising and protection of Pokémon," the map near her changes designs. (00:02:07)
The Path to the Pokemon League - S1-E8
Continuity mistake: When Ash is surprised by what he sees in A.J.'s Gym, the marks on his cheeks go from being present to being absent and then back to present. (00:08:17)
Here Comes the Squirtle Squad - S1-E12
Continuity mistake: When Officer Jenny says, "It's a real shame," Ash goes from having no part of Brock's left sleeve to the right part of Ash's right sleeve to having part of it. Also, he goes being in front of and to the side of Misty to being only to the side of her. (00:05:20)
Continuity mistake: When Ash is excited to see Ritchie when they are in the crowd next to the van, the people around Ash change. (00:06:41)
Continuity mistake: When the elevator doors open to the first floor, the part of the elevator indicating where it is has its background grey, but in the next shot, it is black. (00:05:31)
Continuity mistake: When Ash brings Pikachu to allow Ritchie to power the elevator, his right jacket strip goes from being absent to being present. (00:05:02)
Continuity mistake: When Brock mentions that Ash has to win on the rock, grass, water, and ice fields to compete at the Indigo Stadium, a staff member of the Pokémon League is not smiling, but in the next shot, she is. (00:03:07)
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)
Abra and the Psychic Showdown - S1-E22
Continuity mistake: When Sabrina's father warns Ash about the Saffron City Gym, the buildings in the background change colour and design. (00:06:50)
Showdown in Pewter City - S1-E5
Continuity mistake: When Ash and Misty turn to Flint at the Pokémon Center, the left strap on Ash's rucksack is blue while the part of his jacket to left of it excluding the sleeve is green, but in the next shot, the strap is green while the part of his jacket is blue. (00:03:55)
Showdown in Pewter City - S1-E5
Continuity mistake: When one of Brock's sisters says, "I tore my skirt!" there are no cubicles, but in the next shot, there are. (00:08:59)
Continuity mistake: When Ash and friends are going into an alley, Ash's collar changes from white, to blue, to cream, and back to blue. Also, his face changes from skin colour to white. (00:10:27)
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.