you go to the headquarters in veilstone
beat the leader.
u have to beat the galactic master then use surf at one lake and you will see a cave go in it
You need to beat Cyrus (galactic boss) and then keep going through galactic building in Veilstone, beat Saturn, go up to each Pokemon and press A
Beat all the team galactic guys at the three lakes of Sinnoh.
nothing just beat the galactic HQ in Pokemon pearl and diamond
yugioh is better...
I think they actually got blasted into space by Palkia
you get the master ball once you beat Cyrus in the galactic building
In Diamond you can get Dialga, but you find him in the Spear Pillar after you beat Cyrus of Team Galactic. Im Pokemon pearl you find Palkia.
Beat the team galactics in the town above.
you have to beat team galactic and Cyrus and kill or catch palika (if you have dimond dialga)
Beat Cyrus in the Team Galactic Veilstone Building. He'll give you a MasterBall