If you are wondering how your Pokemon evolve in your game then this is what you have got to do.First you have got to beat Groudon or Raquazza. Then, after the credits role you have gotta go to Pokemon Square. Lotad will be be there and then tell you a story.

The story is that cute little Snubbull has evolved into big, mean Granbull, but he doesn't know why. Then it turns out that he went to Wishcashes pond and went down a hole and evolved.

You have gotta do the same thing and then you will evolve too!! If you need a stone (like Pikachu) then you will be given it for free. But remember, you have gotta be the correct level first!