If you have already done the quest where you had to find a roserade it should be easy to find. You have to go to the place where you found roserade and there should be a cave nearby. In the cave will be a big rock. You have to use a field move on it. I forget which one but I remember that it has to be lvl 5 or 4. Then when you use the correct field move the rock should become a regirock.
u get him in an egg
No
Altru Building
aerodactyl
in vien forest
Nobody cAn answer that
download the misson over wifi.
R- 031 is sudowoodo
jes
Wailord at Harbra Desert
You have to transfer from Pokemon Ranger: Shadows of Alima... hope that helps
no but you can catch lots of legendaries