Other mistake: When Team Rocket is running away with the trophy, James falls flat on the ground, and an indentation of his body as well as the trophy is made. The indentation shows a perfect match to the trophy, but James' arms were partially covering it, so there shouldn't be a perfect indent of the trophy in the ground. (00:05:18)
Other mistake: When Meowth shifts his eyes from his book about the trophy to the trophy, he has five lines on his charm instead of four. (00:04:11)
Other mistake: When Meowth is reading about the trophy, he has five lines on his charm instead of four. (00:03:30)
