If you mean the starter pokemon, im pretty sure the only way is to trade. if you dont have a wireless adapter your screwed. well maybe not cuz you could use stuff like action replay codes but im not sure.
pewter
26
At cinnabar island at the pokemon lab third door.
You have to beat the 2nd gym.
head west of cerulean city to the Rock Tunnel
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
If you picked charmander your rival will eventually get a venasaur.
No you sholudnt have to because you just have to have more than 1 Pokemon in your party, trade with a friend!!
(cheat)you go to the Pokemon center then you heal your Pokemon then you do that again 3more times the third time you do it you will have a warden in your PC
There is no Pokemon convention in firered.
To get Pokemon firered on PC download a vba and Pokemon firered ROM
Yes there are shiny Pokemon in firered