You have to get the National Pokedex by catching all the Pokemon in the Sinnoh Pokedex. Then you go to the Pokemon Mansion and talk to the guy who owns the building.
Unlock Tree House At PokeWalker ...
Ultimatetuga
in Pokemon platinum
no it isn't. unlike Pokemon diamond, you can catch all sinnoh Pokemon and you can also catch palkia at lv 70. Instead of dialga at lv 47, lv 70 in platinum. and you can catch a lv 47 giratina and lv 50 heatran. hope i helped!
Turnback cave.
Mystery Zone
you cannot catch any regis in platinum you have to migrate them or trade for them but if you get regirock, regice, and registeel on platinum then you will be able to catch regigagas at level1 in the snow temple
In the trophy garden
No, you have to go to the Pokemon manshion, talk to the master (First door to the right) until he says "a cute eyed castform ran up and gave me a smooch on the cheek..." after that you need to go to the trophy garden (DON'T get annoyed because it is VERY hard to catch it!!).
how do you catch a mewtwo on Pokemon platinum
you can catch one eventuly in the trophy garden
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
you get castform in the trophy garden just talk to mr backlot its down to chance tho and the list grows when you get the nationel pokedex
You can't actually catch him in Pokemon platinum but you can migrate him over to platinum if you have him in another game
you can't catch him in platinum but in soulsilver or heartgold you can catch him then trade it to platinum.
Castform can only be found on the Pokewalker route "Treehouse" after walking enough steps to unlock it and obtaining the National Pokedex.
Yes.You can catch charmander in Pokemon platinum.
vulpix is not in Pokemon platinum version.
You can catch Sinnoh Pokemon in Pokemon platinum, but you need to migrate and trade unless you have an action replay