first go to lavaridg town and buy a cookie off that old hag,then go to safarie zone and catch a xatu when its in ur party give it the cookie,then go to sky tower save befor u fight requasa put xatu in front and make sure it has the cookie make requasa kill xatu, then turn off power start up the game and start a new file and u'll have unlimited master ball thus makin it easier to catch all pokemon :D :D and if u do this ur a retard these kind off cheats dont exist... the game desiners wouldn't make it that easy to complete the pokedex