Yep.
Get highest rank: Master **** Rank
Get Friend Bow
Be at Lv100
I also believe 7 items when in your bag allows you recruit certain types of Pokemon more easily
Other than those, it's just luck.
It may take several attempts to recruit legendary Pokemon in Explorers of Sky.
they ask you if they can be on the tam
No, there isn't.
mission recruit or egg
Miracle Sea and Surrounding Sea
Take it as your partner Pokemon or recruit him at end lake
no but you will find the statue of arceus
you cant recruit him. there are only 492 Pokemon recruitible in the game
crevice cave and blizzard island, after you beat dialga
you cant recruit arceus he ain't a recruited Pokemon but when you get a space globe from his statue in destiny tower
They help you recruit all the legendaries.
you get them in missions. in surrounded sea you get manaphy, although you cant recruit him.