He disappears after you beat him
You have to go and talk to professor oak in his lab at kanto
After you defeat red he leaves to Hoenn I do not know about that , but to rebattle him again, you must defeat the Elite 4 (or shall I say 5) again. Then he will probably be back on the peak of Mt. Silver.
Unless you have an Action Replay you can't get a Squirtle until you defeat Red. After you defeat Red you go to Professor Oak and you can get a Squirtle.
After you defeat all the gym leaders in kanto go to the top of Mt.silver.
I don't know where he goes, but you have to defeat the Elite 4 (or shall I say5), again for him to reappear at the peak of Mt. Silver.
Bulbasaur can only be obtained after you defeat Red on top of Mount Silver. Go talk to Oak when you defeat him you will be able to pick one the three original starters.
i think you have to beat red You have to go to mt Silver and defeat Red then go to Pallet Town and talk to Prof. Oak and he'll let you choose one.
You must first defeat Red and talk to Professor Oak. Then, you go to Mr. Pokemon's house, who will be there to give you the Red Orb.
After you climb mount silver and defeat Red, go to Mr.Pokemon's house. He will recognize you as a worthy trainer and give you the red orb. Then, near the safari zone, there will be the embedded tower, where Groudon resides. Enjoy!
Defeat all of the Johto and kanto Gym Leader, talk to Prof. Oak, and he will let you go there and challenge red
therapy
defeat all Kanto Gym Leaders and get Rock Climb HM from Prof.Oak