Where's Kakureon!? Huge Chaos Created by the Invisible Pokémon! - S4-E48
Continuity mistake: When showing Madison and Alexa after Brock notices them, there is no blue pot or Kecleon, but when the captain introduces them, a blue pot appears along with two Kecleon. (00:02:51)
Where's Kakureon!? Huge Chaos Created by the Invisible Pokémon! - S4-E48
Continuity mistake: When Ash asks, "What kind of Pokémon are they, Miss?" there is no chandelier, but in the next shot, one appears. (00:03:25)
Where's Kakureon!? Huge Chaos Created by the Invisible Pokémon! - S4-E48
Continuity mistake: When Misty says, "From the outside, you'd never know it looks like this!" the ornaments on the wall are four centimetres thick, but in the next shot, they are two centimetres thick. (00:02:44)
Where's Kakureon!? Huge Chaos Created by the Invisible Pokémon! - S4-E48
Continuity mistake: When Ash asks, "Where are they?" there is a chandelier, but when the Kecleon show themselves, the chandelier disappears. (00:03:30)
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.