I am guessing you have to get all three so you can get regigigias.
You need to trade for them.
There is a little hole in the rocks near the water. You will find the regi rock there.
I think it's a Regi.
This question was already answered:Where_do_you_find_Registeel_in_Pokemon_Ranger
Braille, there is no language called "regi" , regi are the three legendary rock Pokemon and regigigas.
you need all three regi's
Actually you're wrong you can NOT get the regis in Pokemon diamond, to get the regis you need Pokemon ruby/Sapphire/emerald you can get all three regis there(regi ice, regi steel, regi rock) althought if you migrate all of the regis onto Pokemon diamond you can get regi gigas(king regi) you will find him in the snowpoint temple after beating the elite four. Thanks hope i helped ^.^
yeh its pretty easy just walk up to him again. then regi regi regice.
Regigiga can be found in the Hippowdon Temple on Pokemon Ranger: Shadows of Almia. To find him to need to have completed all 60 quests, completed the Browser and have the three Regi Pokemon with you. After finishing the above a secret room will open in the Temple with three places to put the Regis. Once you put the Regis on the pedestals Regigigas will appear for a battle.
by getting all three regi`s from Pokemon emerald, then you can go in and find the fourth regi. (Regigigas)
you can't.. make sure you have the three regi's and migrate them to Pokemon diamond/ pearl. You need National Dex. Now enter the Snowtemple in Snowpoint City. Regigas will be waiting if you bring the 3 Regi's.
ok you kinda need to trade them from ruby or Sapphire after receiving the rubi and Sapphire in Pokemon fitrered!