You can get the action replay and cheat or if you feel like it you can play the game for a while fly to wherever your rival is sandgem or twinleaf town and he will tell you it has came back.
Chat with our AI personalities
You can only catch Palkia once. If you lose, it runs away and you can't find it ever again. But if you saved the game before you battled Palkia then you just turn the game off and on and try again.
If you have already caught Palkia or Dialga (Palkia-Pearl Dialga-Diamond) then that means that you have already defeated Team Galactic, and you can go to the Pal Park, try to find more legendaries, or anything you want to do, but if not then you have to go to the place where you will catch either Palkia or Dialga and right before you catch them you will encounter Cyrus, the leader of Team Galactic. If you want to know where to find Palkia or Dialga and encounter Cyrus try looking up something like "where do you catch Palkia or Dialga?" or something like that.
palkia
yes palkia is a legendary thank you you need a a master ball to catch palkia
No. Regigigas can cream Palkia! However, Palkia's speed is faster. It could attack first.