to get reggigas you need to have the "special reggigas" which i think is an event pokemon, then you go to get "regirock, registeel and regice" then go to snowpiont city, and go to the temple (if you have beaten the elite four) and keep going down and find your way to reggigas.
it is on the bottom floor of the temple in snowpoint city
To tell you the truth I don't really think there giving the mystery gift anymore. That's why you should go to gts and trade for a reggigigas. Most of the time there the event ones so that mes more regis
No you can't but you can get them in Platinum Emerald Ruby & Sapphire I think so or maybe Firered & Leafgreen too you can only get Reggigigas in Pokemon diamond in the snowpoint temple.
you must have gotten the special event reggigigas in order to get them or use an AR code which gives you a JAPANESE Reggi and a shaymin
you could find it in the snow point city in side the temple. but it sometimes says something and you could also find reggigigas inside along with reggice.
reggigigas
After getting the National Dex go to Snowpoint temple. At the bootom floor will be Reggigigas. He will not fight you unless you have the 3 reggis pokeom from previous games.
That item is only on pokemon: farts the rescue from pikachu island due to the fact that reggigigas is very smelly and must stay on the island.
Only regirock, regice, registeel is available in Emerald
Nope. It's not even in emeralds pokedex.
you need all regis (regice , regirock and registeel). When you have them in your party go to the snowpoint temple.
go to snowpoint big house front down ice stachu battle catch the reggigigas solve the riddle