Regirock- Get a pokemon that knows fly and a pokemon that knows rock smash. Then fly to Lavaridge Town and go far right to the sandy area and go down to the boulder with the 6 rocks around it. Go inside and you will see 3 tablets with dots on them. Read the one on the right and go left,left,down,down then use Rock-Smash. Good luck! Registeel- Get a pokemon that knows fly and a pokemon that knows flash. Then fly to Foretree city and go to route 120 to the lady that gives you a Wiki berry if you say yes and go up the stairs to her left then go through the very tall grass and go inside the cave use flash in the middle of the room. Good luck!