They are found in the trophy garden.
trophy garden
no it can not.
you go to the trophy garden behind the Pokemon mansion.
Riolu evolve's normally and pichu evolves through happie'ness
In Pokemon Platinum, Pichu can be found in the garden behind the Pokemon Mansion. The Pokemon Mansion is located on Route 212, south of Hearthome City.
it evolves at lv.59
pikachu then pikachu evolves with a thunderstone to get raichu
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there are lots of ways to get rare Pokemon in platinum. For example, on January 30 2010 go to a GameStop and you can get the Pikachu-colored Pichu.
There Will Be A New Arceus Event,Pikachu-Coloured Pichu Event,Notched Ear Pichu Event,And A Jirachi Event.
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hm....it would have to be.....Spikey-Eared Pichu cause you can't get in platinum diamond or pearl, plus you need another pichu to activate it