either you get Pokemon emerald or Sapphire, and if you want them on diamond or pearl you have to beat the elite four and then migrate.
You can get the three regis on ruby/saphire/emerald. Then migrate them onto dimond/pearl/platinum and go into the snowpoint temple to find regigigas.Make sure the regis are in your party. You must have national dex!
There is no cave for the regis in Pokemon ruby. I have the game no regice regirock or steel.
you can't get the three regis but, if you have pokemon sapir\rubi\emerald version on the gameboy advance, you can tke the three regis through the pal park in route 221 (in south). *there are three caves that may be the caves of the three regis but i don't know what to do there.
you first have to have the national pokedex and must have one of these games, Pokemon emerald, Pokemon ruby, or Pokemon sapphireRegircok, Regice, and Registeel are not findable in the wild in Pearl. You must port them over from Ruby, Sapphire, or Emerald.
You need the event regigigas to obtain the three regis or the three regis to obtain the game regigigas, its a cycle unless pal park, trading, cheats or events are used.
groundon, latios, rayquaza and the three regis.
Migrate from Pokemon ruby emerald Sapphire
No you cannot get the regis nor any hoenn Pokemon all must be traded to you from ruby, sapphire and emerald.
Trade someone with Ruby,Sapphire,and Emerald.
You must Migrate from Sapphire, Ruby or Emrald.
For Pokemon ruby you can catch the three regis, rayquaza, groudon, and latios/latias. In sapphire you can catch the three regis, rayquaza, kyogre, and latios/latias. However, in emerald you can catch kyogre, groudon, rayquaza, the three regis, and latios/latias.
You need relicanth and wailord to catch the regis in sapphire/ruby/emerald. You cannot catch the three regis in platinum unless you have the event Regigigas (this event has now ended). If you have the special regigigas in your party, three new caves will open up in Sinnoh and you will be able to catch the three regis.
All 3 must be traded from either ruby, sapphire or emerald.
You have to transfer from Ruby/Sapphire/Emerald the three Regis, then Regigigas will wake up.
Well, Regigigas is in Snowpoint Temple, but the other three need to be imported from Ruby, Sapphire, of Emerald.
The glyphs make one of the three Regis appear. I think it makes Regice appear
If you flee from one of the Regis in Pokemon Ruby it will disappear from the game. This is the same for all Legendary Pokemon in all Pokemon games. The Roaming Legendary Pokemon are an exception as they can flee from battle without disappearing.