You have to get the member card and visit the little boy in canalave city who is having nightmares, and help him first. The member card isn't available anymore though.
members event get the members card fter national pokedex and you fall asleep the you are on a island and you will see dakrai and capture it
You have to get the member card. After the screen with Giratina on it go to the mystery gift and say receive from wifi
You have to get the National Pokedex by catching all the Pokemon in the Sinnoh Pokedex. Then you go to the Pokemon Mansion and talk to the guy who owns the building.
nope but you can on Pokemon platinum
beat E4.go to canlave then sailors house talk to mother then go to sailor he bring you to new moon island to catch him
there aren't any Pokemon inside the house
after getting the national pokedex in diamond or pearl, platinum go to iron island go in the empty house and talk to the gym leader of canlave city and he will give you the steel coat used to evolve a syther into scizor or onix into steelix
In celestic town
POOPS u can liv in it
Go to Celestic town and her house is near to the left of the Pokemon center.
Besides your mom's house no. You can only get a home in Pokemon platinum.
In the house next to the Pokécenter in Eterna City.