you have to migrate or use action replay
you can;t.
You can catch giratina without any use of action replay in pearl.
You can`t catch it in the wild you need an action replay
yes visit this question too find out how: Cheats for Pokemon pearl without action replay? hope i helped
you cant only if you have icheat or action replay
you can't
You can't.
you must have action replay to catch darkrai, it doesn't goes without.
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.
there is a way...........trade
No, it is not possible.