Just a certificate saying that you completed the pokedex.
I believe you meet him after completing the Sinnoh Pokedex. Then he will update your pokedex to national.
After completing the Sinnoh Pokedex, go talk to Professor Rowan. He will upgrade your Pokedex to the National Pokedex and give you the Poke Radar.
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
Whatever you want you can try the battle frontier train your Pokemon etc.
Just a certificate saying that you completed the pokedex.
The satisfaction of beating the game
I believe you meet him after completing the Sinnoh Pokedex. Then he will update your pokedex to national.
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
After completing the Sinnoh Pokedex, go talk to Professor Rowan. He will upgrade your Pokedex to the National Pokedex and give you the Poke Radar.
afte completing the shinoh pokedex, go to Prof. Birch and their should be a cut scene where Prof. Oak comes and gives you the nantional pokedex
by catching every Pokemon in the game or by completing your pokedex
The NPC that represents an actual developer from Game Freak the creators of Pokemon give the player a Diploma item. The Diploma is an in-game certificate congratulating the player for completing the Pokedex. In Pokemon Sapphire onwards you can receive two Diplomas, one for completing the Regional Pokedex and another for completing the National Pokedex.
Actually do something productive with your life maybe?