you at least need 106 Pokemon in dex and up if you do go to enterna forest
Chat with our AI personalities
To get Rotom you need the National Dex and it has to be night (after 8pm). Then go back to the TV and try again. It's at level 15 and hard to catch.
Pokemon Platinum has two different Pokedexes: the Sinnoh dex and the National Pokedex. In the Sinnoh dex, #152 is Rotom. In the National Pokedex, it's Chikorita.
you don't need either but its easier to have rotom so you can get the rotom forms faster.
#209 in the national dex is Rotom. you can get rotom by going to the old Chateau in the eterna forest. go to the room with the the TV in it and press A when facing the TV at 8 PM. you will then fight rotom at level 20.
Rotom is in the Old Chateu (the mansion/house in eterna forest)It is in the TV at NightI'm not sure if you need the national dex but when you beat the game spring path opens on route 214.