Complete the Unova pokedex (after that coplete the national pokedex)
Chat with our AI personalities
you go to the hall of fame and all the Pokemon in your party get a ribbon that proves you beat Cynthia after that there is a long credit roll
yeh to get kanto legends beat the kanto elite 4 and its champion. do the same as the others
When you beat the poke'mon league in black or white, it is the equivalant of beating it once in the other games. you then try to fill up the national poke'dex as much as you can. you actually battle the champion the second time you challenge the leageu and you finish the Team Plasma story arc the first time(I will not spoil the ending in case you have not gotten there yet.
in the pokemon league after beating the elite 4 talk to each 5 times them YOU HAVE TO BEAT THE CHAMPION WITHOUT LOOSING 1 POKEMON AND THEN GO TO THE BLACK CITY mart and you can buy master balls
you get to see the credits and start a new adventure. [and use poketransfer]