there is no cheat you just need to get the national pokedex and go to the spring path then go through turn back cave
You can catch giratina without any use of action replay in pearl.
An action replay DS does work on Pokemon Diamond & Pearl I use it all the TIME!
The action replay is a device used for cheating.
Action replay or migrate migrate or action replay
Yes, I have brought an action replay about 3 months ago and it even came with codes on it for pearl and diamond
You cannot legitemately get a lvl 1 Giratina in Pearl, but one can be obtained through the use of Action Replay codes.
Action Replay.
Unlike Diamond and pearl you cannot catch a Shaymin. In Diamond and Pearl you have to use the action replay. You would think you would because of the movie "Giratina and the Sky Warrior." The sky warrior being Shaymin.
Before you find Dialga in Diamond or Palkia in Pearl or giratina in platinum, Cyrus will give you a master ball. I'm assuming this is so you can catch Palkia, Dialga, or Giratina.
In diamond and pearl to get you would need a action replay... but in platinum you don't.
In DIAMOND&PEARL you have to migrate it or use action replay.
you can if you have an action replay