At level 200
trade it then it will evolve
Gastly > lvl 25 > Haunter > trade evolution > Gengar
In Pokémon FireRed, Gastly evolves into Haunter at Level 25.
Haunter evolves during trade.
You have to trade haunter to a friend to evolve it.
Gastly evolves to Haunter at level 25.
Gastly > lvl 25 > Haunter > trade evolution > Gengar
You mean how you get Gengar then train a gastly to level 25 it will evolve to Haunter then trade to a friend who has firered or leafgreen your haunter and then take it back when you receive it it will be a gengar.
No. you will have to trade it, if you want a Gengar. this is the same, with Graveler to Golem, or Kadabra to Alakazam.
graveler haunter an some others some holding items some not
Haunter doesn't evolve at any level to evolve your haunter you need to do a link trade with a friend and he he will then evolve
Have to train a gastly to evolve into haunter trade it to a friend and take it back boom its gengar.the only possible way to get a gengar in Pokemon fire red is to trade a haunter and then it will evolve into gengarThe only way to get a Gengar in Pokemon Firered Version is to trade a Haunter with another game.To actually have a gengar trade a haunter to a friend take it back to receive gengar. Agatha has two gengars if you want to see it.