Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Tommy says, "Today, we'll finish up what we started yesterday, Anita has her hands raised, but in the next shot, they are lowered. Also, her case does not have metal parts on the front corners and the back right corner, but in the next shot, it does. (00:10:04)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Ash is first talking with Professor Oak, he does not have his rucksack, but in the next shot, he does. (00:05:25)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: After Ash says that he was joking, the collar of Max's shirt changes from white to green. (00:01:24)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When the camera pans to Ash's friends while they admire the view from the tower, Brock's right sleeve changes from brown to orange. (00:00:07)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Max asks the headmaster if they, Ash, May, and Brock could go to Roxanne's class, the bottom of Brock's jacket changes from orange to brown. Also, Max goes from not being in front of Brock to being in front of him. (00:04:45)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Tommy quizzes Max on his information on Pokémon, a girl with red hair in a ponytail with white shirt is sitting behind him, but in the next shot, her shirt is yellow and has pink hair without a ponytail. Also, Max's body is facing the front of the classroom with his head not turned to Tommy, but in the next shot, his body faces to the left with his head facing Tommy. (00:07:00)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Roxanne says that everyone at the Training Academy can receive lectures from Professor Oak and her, Ash has his bag on and is 90 centimetres away from Roxanne, but in the next shot, he is 30 centimetres away and does not have his bag. Also, Pikachu's left forepaw is behind Ash's left shoulder, but in the next shot, it is in front of it. (00:05:53)
Try to Study! Pokémon Trainer's School! - S6-E15
Continuity mistake: When Roxanne says, "We're here on a field trip, but it's just about time for us to be heading back now," Brock is to the left of Ash, but in the next shot, he disappears. (00:03:02)
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.