During the release of Pokemon Diamond and Pearl in Japan, several people noticed a strange glitch. By surfing through one of the doors in the Elite Four Plateau, walking the correct number of steps in a certain direction, tunneling underground, and coming back up, you could encounter Darkrai and Shaymin, Pokemon only set to be caught in a Nintendo sponsored event. NOTE: You can only perform this trick on an early Japanese version. The bug was fixed in all the following versions, including the English version.