how the hell do i know!? :D
In Diamond you can't catch Regirock, you have to migrate it from Pokemon Ruby, Sapphire, or Emerald.
You can only get a regice, regirock, and a registeel by migrating them from ruby or Sapphire. If you migrtate these Pokemon you can also catch regigigas.
It's not possible to catch Regirock in Diamond. It's possible to catch the three Regi's in Platinum, when you've received the event Regigigas, but not in Diamond. To get it i Diamond, trade with Platinum, or migrate from either Ruby, Sapphire or Emerald.
nowhere u only can catch it in a special event in platinum but if u have regirock in emerald u can send it to diamond
You can't catch him unless you use an action replay code or migrate. if you have question edit.
The Legendary Pokémon that you can catch in Pokémon Diamond are Dialga, Uxie, Mesprit, Azelf, Heatran, Regigigas, Giratina and Cresselia. Regigigas is only available for capture if you have Regirock, Regice and Registeel in your party.
you can get regigigas, you just need to have registeal regirock and regiice in your party to catch it, it is in the temple a snowpoint city, botom floor!!!!
regice regirock and registeel can only be obtained in diamond/pearl using action replay or migrating from gba
to catch regirock u go 6 down 9 left and 39 up
You can only get Regirock by transferring a Regirock from Pokemon Ruby, Saphire, or Emerald to the Pal Park I believe.
You can't.
You cannot