All you need is an Abra with teleport.Also you have to have gone to the Cuerlean poke center. You cant have battled the guy across from nugget bridge or the kid with the Slowpoke. Go right above where the guy across from nugget bridge and save. Then go down and quickly press start.If you mess up turn off the game. Once you get it right use the Abras teleport. You will now be at the poke center and your start button wont work. Now go to the place where you battle the kid with the Slowpoke. dont step right in front of him or your game will freeze. Battle him. Then teleport. Go back to nugget bridge and Mew should pop up on lv7. You can get a second one if you go to the first guy in Mistys gym instead of the kid.
