精灵宝可梦：超级愿望

Xiaozhi is going to travel with his mother to the Hezhong area. When he got off the plane, Pikachu felt something, and then he was caught by the Rockets , Xiaozhi hurried to rescue Pikachu. At this time, a thundercloud appeared in the sky, which disappeared after defeating the Rockets. Dr. Yew came to pick them up, and took Pikachu to Dr. Yew's research center to see his status. Xiaozhi saw the newcomers in the middle, and he wanted to teach the newcomers a lesson with the attitude of an old senior, but unexpectedly, he was ridiculed by Emperor Xiu for coming from the countryside. Dr. Yew took out three Pokémon for Emperor Xiu to choose, and finally he chose the rattan snake. Emperor Xiu went out to practice with his new Pokémon, Xiaozhi followed him and knew that he was going to defeat gyms in various places and then went to the Hezhong League to compete. Emperor Xiu was very curious about Pikachu and wanted to test his strength. The two sides were preparing to fight, but they didn't expect that the rattan snake could interrupt Pikachu's electrical trick. Dr. Yew checked Pikachu again and found that he has been under load for a long time. What is the reason