Mew is only available through Pokemon Events.
The only way you can get to the Johto region is by playing Heart Gold, Soul Silver, Gold, Silver, and Crystal.
Depending on which game your playing, Heart Gold or Soul Silver, it will be Kyogre if you have the Blue Orb (Heart Gold) or Groudon if you have the Red Orb (Soul Silver).
your not acquired to do anything by obtaining a squirtle
Heart Gold and Soul Silver
silver, gold, soul silver, and heart gold
pokemon heart gold and soul silver. and heart gold and soul silver legends
If you are playing Pokemon Soul Silver, the Silver Wing is given to you by the kimono girls, after you help 'em. If you are playing Heart Gold, unlike in the other version, you'll get the Silver Wing with an Old Man in Pewter City.
In Gold and silver you can get 1 at silver mountain, however you can not get it in heart gold or soul silver.
Why are you playing yellow? Heart Gold and Soul Silver were just released.
It depends in your playing soul silver or heart gold you catch in one of the dark caves in the water.
heart gold, soul silver, silver, crystal and gold
May is from Gold Silver Crystal Heart Gold and Soul Silver