you go to the ruin macanic and talk to professor oak and you have finish the game
deleting all youre Pokemon but not youre starter then fly home
You have to keep the action replay code all shiny Pokemon activated or else you can not keep youre shiny Pokemon. You have to keep the action replay code all shiny Pokemon activated or else you can not keep youre shiny Pokemon.
mostly in youre bag
You get the diploma from catching all Pokemon from Nationaldex and Hoenndex.
you have too get all the Pokemon in sinoh in youre pokedex
after beating alder and seeing or catching all Pokemon
There is no code for that, if your talking about action replay. You can't even fit that many Pokemon in 18 boxes anyway. _new_ yes true but you can hack diffrent pokem with a code and theres is a code for seeing all pokemon once that done go to the gts to trade!
By seeing all of the Pokemon there are in Sinnoh.
you can't
it's immpossable to get the national dex without seeing all 150 sinnoh Pokemon (this doesn't include manaphy, which is just extra if u see it)
After seeing all of the Pokemon in the platinum pokedex (250 I think) and beating the elite four. you can get the national pokedex which contains all 493 Pokemon
By seeing all the Pokemon in sinnoh and going to rowen's lab.