yes you can migrate a mew from ruby to diamond
you have to migrate it from ruby,sapphire,emerald,fire red, or leaf green
migrate it from fire red
You migrate it from Ruby, Sapphire or Emerald. You get it from those games via Mystery Gift event.
no. you have to use a cheat, trade someone, or migrate from another game
u can migrate from a gba game or trade.im willing to trade a mew for a celebi.
migrate from emreld i hav one (:
yes migrate it
no you have to buy the game Pokemon chaos black, then trade it to leafgreen, then trade it to ruby or sapphire, then trade it to emerald, then migrate it to diamond or pearl, then trade it to platinum. or use pokepic with ruby or sapphire, then trade it to emerald, then migrate it to diamond or pearl, then trade it to platinum. P.S. a shiny mewtwo is mewthree u just have to rename it because Pokemon ppl never thought of it that way. there is also a mewfour only obtainable with pokepic. an a mew trance is a shiny mew.
you buy an gameshark then you catch him in emaerald or ruby or sapphire then you transfer him to diamond
deoxys-beat the elite four and go to spear pillar but you have to have a kirlia in your party.make sure you have alot of ultra balls because i caught mine in a ultra ball. mew-migrate it from Pokemon emerald,ruby,sapphire,firered or leafgreen. lugia-do the same thing you did for mew .
Mew does not exist in Ruby version.
You can't you either have to Trade (or Migrate) or you can use a code (only from Action Replay)