To get Flareon, you do not level him up- you use a fire stone!
I don't think that Flareon evolves into anything though....
areodactl does not evolve:-)
Golduck does not evolve.
Ghastly will evolve at level 20.
pidgeotto will evolve at level 36
It will evolve at level 20.
Rhydon is not able to evolve in FireRed.
Electabuzz is not able to evolve in FireRed.
You evolve it at level 20
areodactl does not evolve:-)
Golduck does not evolve.
Rattata will evolve at level 20.
Ghastly will evolve at level 20.
pidgeotto will evolve at level 36
level 26
It will evolve at level 20.
Crobat doesn't evolve.
Gyarados doesn't any further on Pokemon FireRed.