You cant
You cant
you can catch in in ruby sapphire emrald pokemon dp platinum and pokemon black and white but groudon exists in ruby and emrald.kroge exisists in sapphire only
no
how do you catch a mewtwo on Pokemon platinum
you cannot catch the 3 regi's in Pokemon platinum you have to catch them in Pokemon emerald then transfer them to Pokemon platinum. thnx
Uu can't trade from a friend
No you cant you can only get it in ruby version.
You cant catch groudon in dimond pearl or Platinum unless you Migrate from Ruby
Trade with SoulSilver (unless you catch the worthless Hoenn Groudon)
No, you can't catch Groudon in Pokémon XD.
you can't catch groundon in Pokemon fire red! you may be able to trade it from Pokemon ruby though.
as far as i know its not possible to obtain a "wild" groudon on Pokemon platinum. however you can trade it in from other games such as Pokemon soul silver.