At an event (toys r us) or with Pokemon Battle Revolution.
Yes, there is a place on the title screen of Pokemon Battle Revolution that you can send Pokemon from Diamond/Pearl/Platinum. Your DS sends the Pokemon via Wireless into the Wii! Warning: You can only do it once for each file.
ActionReplay
get wfi
its a secret place
Get a wifi usb and a wireless router and gonnect to you internet. Then on the Pokemon platinum menu go to the wifi menu and click on the first choice.
It evolves via happiness
only if you transfer it from emerald via pal park
You have to catch a bunch of weak Pokemon in soulsilver and trade them with your Pokemon in Platinum. Also you need 2 ds and trade in the ds wireless communication room.
To get Regice in Pokémon Platinum you need to have gotten the Regigigas from Mystery Gift via Wireless from Toys R US a few months back. If you don't have this specific 1 then you won't be able to get Regice in Platinum unless you trade for it.
Yes Pokemon can be TRADED from platinum in the same way you traded Pokemon between other games!Wireless or Through the GTS^_^
You cannot find a Grotle in Pokemon Platinum. You must start out with a Turtwig and then evolve it or get a Grotle via trading.
you dont!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!