you have almost done all the pokemon in this stage anyway but here is how to get them, for the start there is nothing new but continue on and you'll see the vileplume so play the pokeflute twice and he will do a dance[o], move on and hit the metapod with a pester ball he will come down for a close-up[o], for porygon you'll need to hit the lumps out of the walls and they will be a porygon, hit them again and get them together with apples[o], that's about it for the level.
