Set Out to the Sea! Line of Chonchie!! - S5-E3
Continuity mistake: In "Around the Whirlpool", when Ash uses his Pokédex, the top button like a line is five millimetres wide and ten millimetres long, but when Ash uses it in this episode, the button is one millimetre wide and five millimetres long. Also, the end of his left thumb and index finger are entirely covered by the Pokédex, but in the next shot, they are not. (00:01:47)
Answer: There are a lot of fan theories around this, but the most common theme is that Pikachu had another trainer before Prof. Oak, who gave him to Ash. Pikachu didn't appreciate being handed over.
Ssiscool ★