These aren't pickup lines.. most of them except the Raichu one, are perverted sexual-innuendo creeper lines that would most likely scare girls away.
You're like a rare candy, because you take me to a whole new level.
i love it!
Ha, thanks :P there is one my ex told me (gave me pkmon diamond for valentines day and it was written on a paper inside the box)
Roses are red, violets are blue, if you were a pokemon, I'd choose you. (My ex later confirmed that they wanted to put "much like gardevoir, I'd love to **** you" but realized I would probably get offended/creeped out.)