Go to pacifidlog city. You have to have a Pokemon with dig and put wailord first and relicanth last. Surf down the bottom and keep on the bottom when the currents take you away. You should be by a dive area. Dive in there and go to the end where the braille is. Dive up and you will be in the secret chamber. Go to the braille at the end and use dig. A hole will open. Go into the hole and go to the end of the last chamber. Press A at the braille when you have Wailord first and Relicanth last. Then registeels chamber, regirocks chamber and regices chamber will open. Go to the desert whee the mirage tower was. Go strait down and go in. Next you need to stand on a certain spot and use rock smash. Then the path to regirock will open. Be fully stocked up on ultra balls and hyper potions and revives, cause regirock is very difficult to capture. His moves are: Rock throw, Superpower, curse and ancient power. He will be at lv 40. Have fun fighting regirock!
You will find Regirock at rock peak ruins route 228.
No,you can only catch it in a cave in route 111.
To get Regirock, go to the south part of the desert and you'll find him in the slab of rock. once you do a few things, the door should open to it
No, you just need to beat the elite 4. You can find regirock in the cavern at the bottom of the desert.
He's in the Snowpoint Temple but you need regirock, registeel, and regice to catch him.
to catch regirock u go 6 down 9 left and 39 up
You can't.
No, you'll have to trade it from Platnium. Which in Platnium you find it in the Rock Peak Ruins.
In Diamond you can't catch Regirock, you have to migrate it from Pokemon Ruby, Sapphire, or Emerald.
they have videos on youyube of how to do it
Yes.
Yes.