Get the three golems (Registeel, Regice, Regirock, then go into the Snowpoint Temple (you must have the National Pokedex) and talk to Regigigas. The golems must be in your party.
in the temple in snow point
in the ice temple in snowpoint sity
No, you can not find regigigas in Pokemon Heartgld without using an Action Replay.
no you can't find a Regigigas in Pokemon Heartgold at all. That person used cheat codes to make a Regigigas appear out of nowhere.
You can find Pidey in a Pokemon Outbreak in Pokemon Diamond
where do i find a totodile in Pokemon diamond/pearl on nintendods
there isn't one
You can not find or get manaphy on Pokemon diamond but you can by hacking, trading or... if you have Pokemon ranger you have to complete the manaphy mission and then you can put it onto diamond.
You can't find a Ho-ho in Pokemon Diamond. You have to migrate.
To get a Manaphy in Pokemon Diamond you have to get Pokemon ranger and defeat it and you have to trade it to Pokemon Diamond,Platinum or Pearl.
its not a Pokemon
Not really that rare... in Pokemon Diamond you can find Sunkerns on Route 204