On Platinum You Need Secret Key And Go to Team Galactic Building. On Heart Gold Soul Silver Go To The Silph Co Building with Rotom first in party and go up the lift
No you cannot change rotom's forms without the key unless you have an action replay (i think)
Change Rotoms form
a lawnmower, a frige, a microwave... I forget the rest.
you can't you can only change it in platinum
no not at all
you can change it in either eterna warehouse or silph co
You can only get Rotoms other forms on Pokemon platinum by getting the secret key over via wireless in summer 2009.Go then to the eterna galactic base and press A on a certain wall area to unlock a speical room were all rotoms forms are. In the card game i dont know but i do have 2 frost rotoms :)!!!
NO
I don't think you can.
go to the lift with a rotom then rotoms electricity you go up the lift, change rotoms form and go back down again
rotom doesnt evolve but does change form in platinum.
go to silph co in saffron city in kanto have rotom in the lead position, and take the elevator. If you have 6 rotoms, you can have all 6 forms of rotom. be sure to read the book on the table or desk, it may tell you something useful. this information was solely for the heartgold and soulsilver versiopns