Gastly > lvl 25 > Haunter > trade evolution > Gengar
level 26
Haunter Evolves by Trade.
Rhydon is not able to evolve in FireRed.
Electabuzz is not able to evolve in FireRed.
areodactl does not evolve:-)
You evolve it at level 20
Golduck does not evolve.
pidgeotto will evolve at level 36
Rattata will evolve at level 20.
Ghastly will evolve at level 20.
it evolves by friendship. it does not evolve by level,stones or trades.
level 26