with gummies. Try to give Pokemon it's favorite gummie by looking at gummie's descriptin
He's in Magma Cavern Pit 3F. (Magma cavern is 25 floors.)
Keep defeating him till you get lucky and he asks!
This site tells you how to get max points in less then 10 minutes! it worked for me so yea...: http://gameolosophy.com/games/gaming-on-the-go/
when you get far enough,you need tto get through all of it's floors.there's a treasure to recriut mew.there's more treasure.good luck!
the code is APHE-0603B788 isaac