the only way to get Rayquaza is to eirther migrate it, or a cheat.
you can;t.
In Diamond & Pearl? Impossible without migrating, trading, or Action Replaying.
You can't without trading, migrating or, cheats
you have to migrate or use action replay
There are no cheats without action replay for pearl but there are glitches but if some of them require for you to do the Pokemon trading thing do NOT do them because the Pokemon company can ban you from trading.Just search Pokemon pearl glitches I know there's tons of them.
You have to Beat Prof.Oak and Beat him with a Pokemon with "Rough Pearl" Attached to it.
you can't
You can't.
You can catch giratina without any use of action replay in pearl.
yes visit this question too find out how: Cheats for Pokemon pearl without action replay? hope i helped
Yes u can hack Pokemon diamond and pearl without action replay but u can do it only on PC Watch this video and you will understand how to hack Pokemon diamond and pearl See the related links for the tutorials. Happy Hacking
No, it is not possible.