You have to cheat or trade them from Platinum or Ruby/Sapphire/Emerald (Platinum and Ruby/Sapphire/Emerald contains them) or someone that got them. They aren't normally accessible in Pearl, they're only in Platinum and Ruby/Sapphire/Emerald, and even then, in Platinum they are accessible only by event (excluding cheats), on Ruby/Sapphire/Emerald they're accessible after you active IN-GAME event.
You can, you just need to Transfer from Game Boy Advance and go to a via Pal Park or you can use a action replay, R4 or TTDS
You can't get them in Pearl at all.
you don't need regigigas for registeel. you need reegisteel, regirock and regice for regigigas on Pokemon pearl or diamond
Platinum has the following Pokemon in it that aren't in Pearl: Regirock Registeel Regice Articuno Zapdos Moltres Tangela Tangrowth and of course all the new forms.
You can not capture any of the regis in Pokemon pearl, diamon, or platinum you have to migrate from ruby, sapphire, or emerald. or trade with someone who has them.
free the three legendry Pokemon ,regirock,regice,registeel.or use action replay
he is in the snow point city temple (you need regice reirock and registeel to get him) hope that helps
There is no way to send regice regirock and registeel from ranger to pearl. the only Pokemon that can be transferred from ranger to pearl is the manaphy egg.
there is not regice in pearl. but if you have ruby, emerald, or sapphire you could trade regice,regirock, and registeel to get rigigious.
its probably in another game you can do that
you need regice, regirock, and registeel from Saphire/Ruby/Emeraled
just bring regirock registeel and regice to regigias! regigias will be at lv70
you can only get it by Action Replay otherwise u cant
Regigigas is in the Snowpoint Temple but you need Regice,Regirock and Registeel in your team to awaken him
the Pokemon are regirock, registeel, and regice and you would have to migrare from an other game to get them.. i feel like a Pokemon freak!! : D
you need all regis (regice , regirock and registeel). When you have them in your party go to the snowpoint temple.
You can't... without Action Replay. I do not know a legit way to get Regice (along with Registeel and Regirock) The only Regi I know how to get legit is Regigigas, which needs Regirock Regice and Registeel. If you know a legit way to get Regirock Regice and Registeel, edit this answer. actually you can. all you have to do is send Pokemon from ruby, or Sapphire to dimond or pearl or platinum. then trade it to soul silver.
you don't need regigigas for registeel. you need reegisteel, regirock and regice for regigigas on Pokemon pearl or diamond
You could either trade for it or use cheats like action replay.