Regigigas requires all 3 of the other Regis to be present in order to be captured.
no it is not possible
Sorry but you have to catch Regice, Registeel and Regirock in order to catch Regigigas.
Yes.
You have to have a special Regigigas from an event.
nothing. you catch them. what more can you ask then the regis'? don't be selfish! and you cant catch regigigas.
Yes, if you have the three Regis, you can go to Snowpoint Temple and catch it at level 70 in Diamond and Pearl and level 1 in Platinum.
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.
You cannot catch any of the Regis (Regirock, Regice, Registeel and Regigigas) in Pokémon HeartGold or SoulSilver.
Yes. it does allow you to catch a lv.1 regigigas
you can't
You have to go to an event to get Regigigas and then you can get the 3 Regis, but if you have already got the 3 Regis, then you should be able to go to snowpoint temple and battle Regigigas at the bottom
Sorry dude, you can't get registeel in platinum without a cheat. But you can catch Regigigas in Platinum, but you'll need all three of the Regis to get him.