you can't unless you have two games and two game boys with a link cable. If you have those you can start a game get the Pokemon trade it to the other and start over again.
You starter must be Charmander, and she will be in the wild.
entei is ONLY if you have a Bulbasaur as a starter
You can't catch them, but you can certainly trade them from other games.
They are not catchable on any Pokemon game,however you can trade to get the starter Pokemon squirtle and charmander on Pokemon Leafgreen/Firered.
You cannot catch it on Pokemon firered only on diamond pearl and thhe new one Pokemon platinum
you can not catch bulbasaur you have to pick him as your starter Pokemon
You can not catch a Charmander in Pokemon Firered you must ether choose it as your starter or trade one from Leafgreen
you have to choose charmander as your starter
only if you had a gameshark or if it was your starter
That's impossible.
You starter must be Charmander, and she will be in the wild.
entei is ONLY if you have a Bulbasaur as a starter
You can't catch them, but you can certainly trade them from other games.
If you get squitle as your starter, once you get the national dex, it will be a roaming Pokemon
you cant, 2 have bulbasaur, you have to of got it as your starter
You can only catch one of the dogs which depends on what starter you chose to get the rest get one from firered to get the second and the third from Pokemon colosseum.
you have to beat the eliet 4 and it will appear at random if your starter Pokemon was a charmander