I don't no yet
under the cycling road, at the very north under there, you have to feel your way along the wall, when in side use TM Flash.
Registeel is in a cave right at the end of iron island. However, you have to do something to open the entrance otherwise there will be a blank wall.
Your an idiot, you actually got stuck in a wall
aprrox 12 am
After you get the HM Rock Climb, and a Pokemon knows it, you can approach a rocky wall, press A, and you will scale the wall.
You'll need to teach a Pokemon the HM Rock Slide, which is located on Route 217, and then press A on the rocky wall and the Pokemon will slide up or downwards of it.
On the way to Snowpoint city there will be a hiker in his house who claims he has ost the hidden machine Rock climb. The Hm is just behind his house in a pokeball
I don't no yet
You need action replay to do this cheat but it is only on Pokemon pearl
Teach them the HM move Rock Climb
To find heart scales on Pokemon diamond/pearl you need the explorer kit to go underground. once you are underground look for cracks inthe wall, and eventully you will find a heart scale in the cracks.
rock climb
rock climb XD
You have to get 1 of each of the 26 different types
You dig up the treasures by touching the lower screen next to a wall where there was a shiny thing.
In both games, go to Mt Cornet near the first gym, use rock climb on one wall then go find Dialga in Diamond or Palkia in Pearl.