you go into the union room at the top of a pokemon center XD jackass
black and white
If you have Pokemon White Virsion then you can in white forest, if you have Pokemon Black Virsion then you must trade it from Pokemon White
no you cannot but you can battle latias/latios
Yes
Do wifi battles and make sure to do triple battle
Yes, you can battle people without using WiFi by using either IR Connection or DS Wireless Communications.
No you cant because Pokemon White and Black has new Pokemon that Pokemon battle Revolution cant use
No, but if you can link to someone who has Pokemon Black via wireless, you can visit his or her Black City using the Entralink.
Just to the left of the Pokemon center in Opelucid City. It's called the Battle House in Pokemon black and white.
You cannot re-battle the Gym Leaders in Pokémon Black and White.
from the janitor after you defeat him in a pokemon battle in the battle tower in castelia city in both pokemon black and white versions.
No. Pokemon Black and White have new Pokemon that the past games' engines cannot recognize. Even if you battle with Pokemon from previous generations, they might be loaded with moves from the new generation.