Once you have beaten Ghetsis the Elite-four will be harder (as it is in every game.)beat them and then all the rare pokemons' caves will be open and you will have beaten the whole game. (and then even after that you can battel the champion from pearl and dimond, found in Undella town) the house to the left of the Pokemon center.)
with Pokemon
ok, here's the steps: 1. beat black kyruem (black 2) or white kyruem (white 2) 2. beat ghestis 3. beat pokemon legue (sorry spelled it wrong) 4. beat pokemon league champion iris 5. catch every pokemon (black/white kyruem included) 6. get every item 7. get all wallpapers 8. beat ash (known as red)
free roam
when you have gotten reshiram in black or zekrom in white, respectively,
after you beat the Pokemon league
First you have to beat the main story
After you beat the elite four, there's a zoarak out side victory road . Follow that zoarak and he will lead you to n , n gives you the black stone in pokemon black , and the white stone in pokemon white. Get the stone to dragonspiral tower and it will revive. Catch the legendary pokemon and then find kyurem in giant chasm. Before you beat the elite four, you will have to beat white/black kyurem after you beat it, there's the gene wedge on the floor.use that gene wedge to fuse reshiram/zekrom to kyurem to get black/white kyurem.
10; And it is only available in Pokemon Black 2
In the dreamyard after you beat N and Ghetsis.
Yes. After you beat the main story, you can migrate from daimond, pearl, platinum, heartgold, and soulsilver versions to black and white
After you beat Ghatsis on Black or White, you cannot find him again.
no you must poketransfer platinum Pokemon from the game to black/white. just like pal park: beat elite four to unlock