Through an action replay cheat system.
In Pokemon Soul silver or silver or gold, the legendaries you can get is Lugia, Suicune, Entai, Raikou, Mew and Mew 2
you cant you have to trade
mystery gift
Mewtwo is in cerulean cave, and you can only get Mew through an event.
Yes mew two is on soul silver you just need to look in cereleun cave
Mew.
Nintendo event or action replay
You can't find mew without an event. Sorry.
You cannot catch a mew. You can only get it through events or cheats.
use a action replay or you don't get it
You get him in trade with a friend or you do the event that past already.
Mew is only available through Pokemon Events.