The only way is a cheat with the action replay or migrate from a gameboy Pokemon game
No
in the Pokemon center
groudon
you can't. you can only migrate it. You can also use Action Replay.
if you have action replay you will get to pick a pokemon so groudon is a hard pokemon you need the red orb for groudon on pokemon soul silver version or pokemon heart gold version but use action replay on pokemon pearl,diamond,platinum
you can't catch groudon in platinum unless you have action replay. You can transfer it from emerald and/or ruby through pal park
groudon is in pal park in the mountain area
you can not. you must migrate or trade
you cant but you cant but if u trade it from heart gold to platinum then you have a groudon
the only way to get groudon is to either import it from Pokemon sapphire/ ruby/ or emerald, OR, trade it from pearl/diamond/or platinum.
NO sorry what were you thinking you can only get them on r/s/e
You can migrate it from Pokemon Ruby or use an Action Replay.