If you have transferred the Regigigas that you obtained from the 11th movie over to Platinum and have it on your team, then you can encounther Regice in Iceberg Ruins (Mt. Coronet).
You need the Event Regigias that was given away in March 2009 at Toys-R-Us. When you trade it to Platinum, Regice will be in the cave when you enter Mt. Coronet from Route 216.
You catch Regigigas by migrating Regirock, Regice, and Registeel from a GBA game then go to the Snowpoint temple in Snowpoint city.
u don't get regice on Pokemon pearl
You can't find Registeel in Pokemon Platnium. You just migrate it in Pokemon Ruby, Pokemon Sapphire, and Pokemon Emerald.
There is no 'platnium', but you can find it on wild pokemon.
you cant catch it in platnium but you can trade it
the most wanted in this houshold is Pokemon platnium
It is Pokemon platnium.
Barboach
spell you trash 'platnium'=Platinum
by-Pokeexpert980 The same as PEARL/DIAMOND/PLATNIUM 493
from Pokemon FireRed