Beat Red, and then go to Professor Oak.
Only by trading a Squirtle to HeartGold.
HeartGold and Soulsilver
nobody this is the johto leage sorry
squirtle to wartortle lv 16 wartortle to blastoise lv 36
You need to pick Squirtle as your starter,And evolve him into Blastoise.other than that no idea.
Get all 16 badges and defeat red. Then talk to Professor Oak in Pallet Town. He lets you choose to get either Bulbasaur, Charmander or Squirtle. Choose Squirtle.
You can get Bulbasaur from professor oak. You could also get Squirtle or Charmander.
You can get a Squirtle after you obtain all 16 badges and defeat Red.
You can't obtain Squirtle or any of its evolutions in Black or White, so you will have to migrate a Squirtle from Pokemon HeartGold or SoulSilver Version. If you don't know how to obtain Squirtle in HeartGold or SoulSilver, you have to beat Pokemon Trainer Red, who is at the top of Mount Silver, and obtain all 16 gym badges. Then, Professor Oak will let you choose one of the Kanto Starters in Pallet Town. Hope this helped!
You can't hatch a Blastiose because it's not the first evolution, but you can hatch Squirtle.
You have to battle blue. From there the game is technically done but you can get new starters such as Squirtle.
Afterwards, Professor Oak will give you a Generation 1 starter (Bulbasaur, Charmander, or Squirtle)