Continuity mistake: When Ash requests a baker, the basket further away from the screen has its left strap facing diagonally up, but in the next shot, it is facing vertically. (00:03:45)
The Battling Eevee Brothers - S1-E38
Continuity mistake: When Sparky asks, "Have you decided on Eevee's Evolution yet?" Misty's left thumb is on the front of the bench, but in the next shot, it is not. Also, there is a drink on the right support of the bench, but in the next shot, it is on its beams. (00:10:16)
The Battling Eevee Brothers - S1-E38
Continuity mistake: When Ash and friends turn to Pikachu after he notices something, Ash's right sleeve goes from not covering the right strap of his bag to covering it. (00:01:17)
Continuity mistake: When Ash asks how they would succeed in their match at the Saffron City Gym if they do not go back into the Pokémon Tower, Charmander is on a connecting part of the path, but in the next shot, he is not. Also, Pikachu is on one completely, but in the next shot, he is not. (00:10:31)
Audio problem: When Ash says, "Up here," his mouth does not move. Also, a part of Pikachu's tail is mistakenly coloured yellow instead of brown occasionally. (00:01:42)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When the camera pans across Ash and friends as they look at the Saffron City Gym, Ash is smiling, but in the next shot, he is not. (00:02:53)
Mystery at the Lighthouse - S1-E13
Other mistake: When Bill says, "A meaning for all Pokémon, and a meaning all of us humans too," a Sandslash on a screen has an entirely yellow head and has black pupils with white sclerae. Sandslash actually have the lower part of their head coloured cream and have their white pupils with black sclerae. (00:14:01)
Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When Ash and friends realise that the Charmander on the rock is Damian's, Brock's vest goes from being visible underneath Misty's right arm to not and then back to being visible. Also, the marks on Ash's cheeks go from being forward z's to being backward ones. (00:06:43)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When a passenger asks the captain if the ship is a little off-course, a crowd surrounds a hallway, but in the next shot, the hallway disappears. (00:18:39)
Battle Aboard the St. Anne - S1-E15
Other mistake: When showing Raticate and Butterfree on a screen during the first trade, they are coming from the sides that their Poké Balls are not on. (00:11:58)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When Meowth says, "We got a call from the boss," he moves his right forepaw onto a button, but in the next shot, it is no longer on it. (00:04:24)
Continuity mistake: When Ash says, "We gotta make sure we don"t get separated," Misty's right arm is violet, but in the next shot, it is skin colour. (00:01:32)

Mystery at the Lighthouse - S1-E13
Continuity mistake: When the lights in the lighthouse turn on, Pikachu's left ear overlaps Brock's bag despite being behind it. Also, the part of Ash's jacket to the right of his collar goes from white to blue. Additionally, the part of Brock's bag to the left of his head goes from present to absent twice. Furthermore, the keys on the phone go from present to disappearing. Moreover, the right side of the front of Ash's hat goes from being white to being white and red and then back to white. (00:10:08)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Ash and Krabby first approach each other, there is no stick on the ground, but in the next shot, there is. (00:04:26)
Mystery at the Lighthouse - S1-E13
Revealing mistake: When first showing Ash and friends at the top of the lighthouse, Pikachu is floating in midair. (00:15:00)
Mystery at the Lighthouse - S1-E13
Revealing mistake: When Professor Oak puts tofu in a bowl, the tofu is briefly shown behind it instead of in it with the ladle it is on having a line from the bowl showing through it. Also, when he gets it out, the tofu is not fully coloured in. (00:09:02)
The Path to the Pokemon League - S1-E8
Other mistake: When A.J. is grateful when Sandshrew returns, his Butterfree's antennae are missing occasionally. (00:15:24)
Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When Nurse Joy checks Charmander's heart rate, Charmander's flame is missing occasionally. (00:10:48)
Charmander: The Stray Pokemon - S1-E11
Audio problem: When Misty gives Ash some soup, the sound of its bowl being placed on a table is heard before it is placed on it. (00:05:49)
Electric Shock Showdown - S1-E14
Other mistake: When Ash mentions that Lt. Surge must be a great Trainer, a Rattata's left eye is missing. (00:02:43)
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.