Celestic Town for the first battle.
Team Galactic's Boss' name is Cyrus.
They are not alive.
He is single
You get a Master Ball from Team Galactic Boss Cyrus at the Galactic HQ.
After you defeat Cyrus at the Veilstone Galactic building and he will give it to you
You get it after you beat team galactic boss Cyrus.
You have to defeat the Galactic Grunts' boss, Cyrus.
At the peak of Mt. Coronet.
Cyrus is the team galactic boss and the player encounters him in many location during the course of the game. The final confrontation with Cyrus in Diamond and Pearl is at the top of Mt. Cornet when he tries to summon Dialga and Palkia.
He is in the galactic wearhouse in Veilstone city
You can get only one. Galactic Boss Cyrus will give you one when you defeat him at Galactic base.
You get it from Galactic Boss Cyrus after you defeat him in Veilstone city