you can't find haunter in Black
You can't catch a Haunter in Emerald. You can trade for one, you can find a Duskull/Dusclops at MT Pyre, but you can't straight out find a wild Haunter.
You can find Haunter in SoulSilver in Route 8 at night. Additionally you can catch a Gastly at night in the Sprout Tower or the Bell Tower and then you can train it until Level 25 which is when it'll evolve into a Haunter.
You have to find your friend, you trade your Haunter with another Pokemon and when the trade is done Haunter will evolve.
You can't find gengar in the wild, you have to get a haunter and trade it.
you can't find haunter in Black
You can't catch a Haunter in Emerald. You can trade for one, you can find a Duskull/Dusclops at MT Pyre, but you can't straight out find a wild Haunter.
look in the Pokemon tower in lavender for haunter. note, haunter is hard to find in the Pokemon tower
Haunter can be found on Route 8 or in the Safari Zone.
you cant find gengar in any of the games im afraid, you must trade haunter and then you get gengar
Yes. you can find ghastly at lost tower or Eterna Forest. You can get haunter but i don't know where.
You can find Haunter in SoulSilver in Route 8 at night. Additionally you can catch a Gastly at night in the Sprout Tower or the Bell Tower and then you can train it until Level 25 which is when it'll evolve into a Haunter.
you get it over a trade.
You have to find your friend, you trade your Haunter with another Pokemon and when the trade is done Haunter will evolve.
Trade a Haunter and it will evolve into gengar
evolve gastly.
you cant you have to evolve haunter