you have to find all the seven sages ,beat Cynthia ,alder and the elite four.
Finish Victory Road
At N's castle
There won't be any old Pokemon on Pokemon black and white until you finish the main quest.
Yes.... it's possible i did it with Pokemon platinum... so it's possible with Pokemon black/white too..
Yes they are, once you finish the main story and get the national Dex, you can find lower generation Pokemon
Finish the pokedex and raise all ur Pokemon too the end..i guess. Also don't forget to visit white forest.
finish the pokemon league
Finish the Game and serously those games are so old get black and white
nope [Edit] You get a masterball from Professor Juniper after you finish all 8 Gyms.
If you finish ruby get another version of pokemon.
i never finished but im pretty sure that's a yes
You cant you can only get the super rod after you have beaten the elite four for the first time