In the Sinnoh Pokedex, 152 is Rotom, between Manaphy(151) and Gligar(153).
Picachu
number 152 is rotom and you can catch him by going to the old cheatue
You find 152(Rotom) at the old Chateau on the second level in the second room. Hope this helps:)
I believe you are talking about mew or mewtwo
its chikorita serbii is wrong serbii uses the INTERNATIONAL pokedex in Pokemon platinum its diffrent o-o
= 152
Number 152 is Rotom on platinum :)
151 manapy 152 rotom
152: rotom (platinum pokedex) 152:chickorita (national pokedex) you can catch rotom when you examine the tv in old chateau between 8pm and 3:59am
its chikorita
Rotom is the Sinnoh (platinum) region #152, obtainable in the Old Chateau at night (by interacting with the tv in one of the rooms)
rotom
rotom
Rotom
Picachu
There is no number 152 in the Sinnoh Pokedex however number 152 in the National Pokedex is Chikorita.
The 152 Pokemon in the Pokedex is Rotom, not the other Rotom's just electric Rotom