Continuity mistake: When Brock says if there are Ghost-type Pokémon, then they can show themselves to them, he, Ash, and Misty are between a doorway, but in the next shot, they are not. (00:08:33)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When Ash says that there is nothing to worry about, there is a blue building to the left of Ash's left shoulder, but in the next shot, the building is yellow. (00:04:00)
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 the gentleman asks, "So, you're having a good time?" a plate next to a plate with cake goes from being present to being absent. (00:10:33)
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)
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)
Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When Ash asks if he cannot get Pokémon, there is no protrusion between Brock's and Misty's bags, but in the next shot, one appears. Also, Pikachu's head is not turned, but in the next shot, it is. Additionally, the strap of his binoculars is on the centre of the right half of his collar, but in the next shot, it is not. (00:01:34)
Other mistake: When the computer in the storage room says, "Downloader activated," the land and water are reversed with the cities appearing on water instead of land. (00:15:02)
The School of Hard Knocks - S1-E9
Continuity mistake: When the doors to the training room open, there is no light aligned to the centre of the doors, but in the next shot, there is. (00:09:55)
Mystery at the Lighthouse - S1-E13
Other mistake: When the front of the Kabuto costume falls off, the part of Bill's body above his arms is missing. (00:12:34)
Pokemon, I Choose You! - S1-E1
Other mistake: When Ash gets Pikachu's Poké Ball from Professor Oak, the latter's hand right hand is drawn backwards. (00:06:52)
Other mistake: When Nurse Joy says, "Transporting Poké Balls," the screen changes between shots. Also, the land and water have their colours reversed with the cities appearing on water instead of land. (00:14:45)
Revealing mistake: When Solana removes her phone from her pocket, part of the strap on it is missing. (00:03:47)
Evolution! That Mystery and Wonder!! - S8-E50
Continuity mistake: When Dr. Gordon first demonstrates his Future Sight device, the utensils on it are grey, but in the next shot, they are brown. (00:02:36)
Evolution! That Mystery and Wonder!! - S8-E50
Continuity mistake: When Dr. Gordon says that one of his experiments caused Caterpie to become large, Ash is behind a violet building, but in the next shot, he is behind an orange building and a violet one. Also, May is to the right of him, but in the next shot, she vanishes. (00:11:21)
Continuity mistake: When Ash asks if Pikachu is ready for his challenge at the Dewford Gym, a poster behind a plant and a light go from being absent to being present. Also, the plant changes designs between shots. (00:00:03)
The Pokémon Water War - S2-E25
Continuity mistake: When people are first running, Tracey has his head turned, but in the next shot, it is not. (00:01:07)
Charmander: The Stray Pokemon - S1-E11
Continuity mistake: When Damian says that he had a Charmander, his glasses go from being positioned towards the top of the hair underneath the bridge on it to being towards the bottom of it. Also, he goes from smiling to not smiling. (00:06:23)
The Pokémon Water War - S2-E25
Plot hole: When Officer Jenny says why Captain Aidan needs to get Team Wartortle to the location of the final fire, she says that Team Blastoise's path is blocked by a lorry, and Team Squirtle is not powerful enough for the fire. This does not make sense for the former as Team Blastoise later pushes the same lorry aside. (00:13:41)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Bill removes a device from his pocket, the top of the device is entirely orange, but in the next shot, it is mostly black with its band being orange. (00:15:31)
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.