You collect all eight badges, and then you challenge and beat the Elite Four.
Mr. Fuji gives it to you after you beat Team Rocket in Pokemon Tower.
ya u can trade Pokemon in blue before u beat the elite four.
you have to finish the team rocket part in Silph co. and beat Giovanni.
To beat the Pokemon Leaf Green version for Gameboy you have to get the Nation Dex and beat Raiku and Suicune.
um u finish the game and that's it And not a lot happens, you can still play, collect more Pokemon train, beat elite four again........quite boring after that
Finish your Pokedex And Beat The Elite Four once then the second time they have stronger Pokemon
Syther is not available in Blue version and must be transferred from Red version.
no
not possible
you fill your pokedex
the Pokemon have levels not you
No, but you can in yellow