you get them at level 5 from professor oak in pallet town :)
I'm not too sure about Squirtle, but both Bulbasaur and Charmander are Lvl.10
bulbasuar (grass), charmander (fire), and squirtle (water)
actually you can! you go to pallet town and talk to the prefessor. he will give you a choice between squirtle,charmander and bulbasuar.
yes there is after you get your national pokedex you have to talk to professor oak in pallet town,he will give you a choice of charmander squirtle or bulbasuar
you can get them by trading with your friend,but i don't think that there will be anyone so foolish to give his/her charmander, squirtle or bulbasaur.You have to choose just one Pokemon in starting and there is no place where you can catch one of these.
Pikachu, Treeko, Torchic, Mudkip, Bulbasuar, Charmander, Squirtle, Turtwig, Chimchar, and Piplup
if you have heartgold you can get one by beating all 16 gym leaders and beat both final fours then you get to choose between bulbasuar charmander or squirtle
gold, silver, crystal the much older games the ones with charmander , bulbasuar and squirtle as starters
u can only get one based on witch kanto starter u get squirtle=raikou charmander=suicune bulbasuar=entei
Charmander is better attackwise.
Well if Gary is your rival than it depends on what starter you pick but he has the same Pokemon but his squirtle or charmander or bulbasuar is now at the third prestige blastoice or charizard or venisuar.
Bulbasuar, ivysuar, venasuar, pikachu, charmander, squirtle, charizard, charmeleon, blastoise and warturtle