ou have to fill up your pokedex with over 50 different kinds of pokemon then find professor oak's aide he will be in that thing were you transfer from city to city, the top of that building.... with the security guard...... if you have filled your pokedex to over 50 pokemon he will give you an exp. share --Spencerqaz123 20:01, 11 June 2009 (UTC) Me too, this is for Fire Red and Leaf Green: