you get your legendery pokedex!!!! you get your legendery pokedex!!!! you get your legendery pokedex!!!!
Nothing. It just gives a great feeling that you did something.
try and fill the national dex
There is no ar cheat known to fill the national pokedex.
You have see to many different pokemons. Then you will fill it (you have to every Pokemon to get national pokedex).
fill up sinnoh pokedex to national pokedex.
Yes you can. You just have to fill up your pokedex and talk to pr.Rowan.
use action replay
You become an uber nerd;)
you will have to start the game again
Without an Action Replay, there is no easy way to fill the National Pokedex.
fill in the sinnoh pokedex and then the national one
you just have to play the game