You must beat the game.. then you go out with your partner then caterpie will be standing in front of you caterpie will tell you snubull looks wiered!!!!!!! WIERD??? Your partner exclaims! You go to wishcash pond.. Then you see snubull or rather Cranbull Alakazam tells you all abought evolving! And how you can not change back to your Previous form! Then in order to evolve you onely need one member on your team not two but onely yourself!!!! When you are going to a dungeon you partner stops you and says how abought we be able to pick leaders and the leader can go alone if it wants You have to say yes! After that go to Wigglytuff club.. get the friend area........final Island! Then do a few rescue missions after that you will recive word abought it the new dungeon Buriued relices! So go in there make sure you have three spaces left in your invontory supplies! Then face those three regies Get what they drop!!! Make sure you have no one with you a friend bow and pleanty of Rievivier seeds!!! Then you get the music box! DON'T USE IT!!!!!! or you will not get mew Oh by the way there are 100 floors! find mew deafeat mew.. if mew does not jion your team do not shut it off there is no save points!! just go up another floor and see if mew is there if mew is fight mew... IF YOU ARE LUCKY!!! I repeat lucky!!!! Mew might jion your team!!! I know because I got mew without a Friend bow and with a level 40 pokemon when it was a diffrent pokemon! IT has a zero precent rate of you getting it when it is a diffrent pokemon! I guess I was lucky that day....