i don't remember good but you need walk two steps to the left an two down an use strength
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
read sign, wait two minutes the door will open
You need a Relicanth at the end of your party and a wailord at the front of it to unlock the regis
You know where the dessert is? Go there, go in the middle of it, now go all the way down. Before you get to go all the way down, go to the cave. Talk to the middle paper. It says... Go right 2 steps, now go down two steps. USE STRENGTH TO OPEN THE DOOR! You'd open the door, go in the door. There lies Regirock.
I don't think you can get regirock in pokemon ruby.
Read the braille then do the following: Step right twice then step down twice then use rock smash the door should open.
Regirock is at the bitten if the desert on route 111. You need to have already opened the outside door by going to the cave after pacifidlog town. Take a relincanth and a wailord. Put the relincanth first and the wailord last in your party. Go in, using dig, then go to the back room and talk to the center of the wall that has Braille. Go to regirocks cave when it is open, then go in. Walk to the Braille at the top of the cave. Read it, then take two steps left and two steps down. Then use rock smash. If you do exactly that, a door will open where the Braille was. Walk in and regirock will be there.
It's different in different versions.
I believe you have to catch all of the Pokemon in the game, then you get regice, regirock, and registeel and go to Hippowdon Temple. In one of the puzzle rooms should be a spiral thing in the ground and you go get to that. When you get there, you place regirock, regice, and registeel on these platforms and a door will open and you can go in and that is where regigigas is.
Put recaith in your party first and wailord at last, then get to the desert ruins outside the door and go two steps right, then two steps down, and afterwards use strength and then the door will open But in emerald, do the same thing but walk two steps left, then two steps down, and afterwards use rock smash to open it.
To open the cave of Regirock in Pokémon Emerald, you first need to unlock the entrance by using the appropriate combination of moves. Go to the cave located in the Desert Ruins, then use the move Dig or Rock Smash to create a hole or break a rock. After that, you need to press the A button in front of the door while standing on the correct tiles (the three surrounding tiles) to activate the entrance. Once opened, you can enter and challenge Regirock inside.
you cant unless you have a regigigas