there was a special event, but that was months ago...
not. you will have to migrate them from emerald
You can catch on at the Snowpoint Temple. However, you must have the 3 Regis in your party.
You cant, You have to trade it with someone who has saphire, or ruby
First get all other 266 Pokemon in the Browser then you will get a mission to go to hippodon temple. Catch the 3 Regis then go down a hole in the temple put the three regis on these things then you vs Regigigas
No, first you need to migrate the 3 regis and put themin your party and then go to regigas
No. You can only catch the 3 regis, (regice, regirock, and registeel) and then in Diamond, Pearl, and Platinum if you migrate the 3 regis to your account you can get regigigas at the bottom of the snowpoint temple.
All 3 must be traded from either ruby, sapphire or emerald.
There really isn't one that's completeley strong, but you can catch an ice Pokemon that starts off strong: Regice. Try completing the "Regis" puzzle to catch all 3 regis.
you go to pal park and download them into platinum, diamond, or pearel.
Do you mean Regigigas? If so, then you first need to attain all 3 of the regis (Regirock, Regice, and Registeel) then you can interact with the pokemon, and battle it.
nothing. you catch them. what more can you ask then the regis'? don't be selfish! and you cant catch regigigas.
All 3 of the Regis are level 40.