you go through the warehouse and he is waiting for you and then you battle him and then he gives you a master ball and after that the crumbled wall is opened so the spear pillar is accesible. also when you defeat him and get the master ball he lets you free the 3 legedary pixies (mesprit, uxie, and azelf) by anglebaby17
Cyrus the galactic leader
You go to the lake and battle Cyrus.
in platinum the first time you battle him is in celestic town and in diamond and pearl the first time you battle him is in his base in veil stone.
No, After U Defeat Him In Diamond/Pearl/Platinum U Defeat Him He Compleatly Dissapears
yes but you have to own two DS's and the games UPDATE: You also need Pokemon Battle Revolution
he is in veilstone city
There is no Battle Frontier in Pokemon Diamond and Pearl. Only the Battle Tower.
Cyrus is in the galactic veilstone HQ and spear pillar.
there is no battle frontier in Pokemon pearl,but there is a battle tower. you can go there after you beat the elite 4
You have to enter Mt. Coronet through Route 207, and go with good pokemon, because you battle Mars and Jupiter, then Cyrus, then you battle and try to capture Palkia. (Hint: Use the Master Ball Cyrus gave you. You don't even have to hurt it.)
CYRUS IS THEN IN GALACTIC HQ WHEN YOU FIND HIM YOU BATTLE HIM IF YOU WIN HE GIVES YOU THE MASTER BALL. (The master ball should go to the FIRST Pokemon in your team)
in the light house