How do you get that little green man in the pokemart to appear without cheatingin Pokemon pearl?

You must unlock the mystery gift. To unlock the mystery you must go to Jubilife City and talk to a reporter in the 2nd or 3rd floor of it. Answer "Everyone happy" then he will ask another question and answer "Wi-Fi Connection." however this will not unlock the green man. In order to unlock him you must have WFC. You must unlock the mystery gift. To unlock the mystery you must go to Jubilife City and talk to a reporter in the 2nd or 3rd floor of it. Answer "Everyone happy" then he will ask another question and answer "Wi-Fi Connection." however this will not unlock the green man. In order to unlock him you must have WFC.