First of all its SINNOH and its rotom
Rotom: Old Chateau, night only
that Pokemon is rotom. u can get him at night in the eterna forest at the haunted house in the room with the tv. But if u go in the wrong room befor getting the rotom then u hav to wait until next night.
Picachu
In the Sinnoh Pokedex, 152 is Rotom, between Manaphy(151) and Gligar(153).
You have to see (or catch) every poke in the shinno pokedex
There is no number 152 in the Sinnoh Pokedex however number 152 in the National Pokedex is Chikorita.
Number 152 is Rotom on platinum :)
In the sinnoh pokedex rotom is number 152 but in the national pokedex rotom is number 479 and chickorita is number 152
472: Gliscor
It is finneon!
Rotom is number 152 in the Sinnoh Pokedex.
chikorita
it is rotom
For the Sinnoh Pokedex: Rotom For the National Pokedex: Chikorita
rotom
rotom
Chikorita is #152 in the national pokedex, and it is a Grass type Pokemon.