Rotom actually isn't a legendary Pokemon. It's found when you go into one of the back rooms and thump the TV set between 10 p.m. and 4 a.m.
In Eterna Forest.
It Is In Eterna Forest At The End
the old chateu is only in Pokemon diamond pearl and platinum versions
you find him in the old chateu in the ilex forest
near the end of eterna forest
there are loads of ways migrating trading but my fav is hack with old chateu and lvl100 dialgas a whole party of em you get shiny dittos in old chateu works for me
No, the only way to get Gengar is to trade a Haunter.
i dont think you can i suggest you get gastly and evolve it
If you have Fire Red in your DS, go to the Old Chateu.
Pokemon 152 is rotom which can be found in old chateu in eterna forest
Eterna Forest is a good place to train, but if you get sick of that and you want even stronger; Old Chateu is great. With all the creepy GHOST Pokemon plus the legendary ROTOM in the TV.
It's just something they put their to freak you out