You can trade it to a friend.
No you must trade from FireRed and LeafGreen
Get a link cable and trade/receive a Haunter.
To get a Gengar you must first catch a Haunter. To evolve the Haunter you have to trade it to another gaming system.
Trade a haunter to a friend then take it back to receive 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.
Trade A Haunter to Another Game
you have to traid a haunter
When U trade it by another player and ur age level "LOL"You can't you have to trade it then it will evolve
Brother/Sister/cousin/Friend If they have Leafgreen or Fire red. if you have 2 Game Boy's you could trade it to yourself.
in the Pokemon tower in lavender town
Answer:you can CATCH Haunter at: 5 IslandPokemon Tower(trading one can be done at any upstairs Pokemon center with a friend)IMPROVED: You can't trade with anybody in the game, but if you have the adapter you can with a friend. Once you trade a haunter he will evolve in to a gengar. That is the only way to get a gengar. hope this hepled
Yes you can trade leafgreen version Pokemon to another leafgreen version.