if you are talking about Pokemon you simply trade it to another persons game and it will evolve once its traded you can trade back after and you will have a gengar same applies for alakazam and various other Pokemon too.(some Pokemon are required to be traded while holding a specific item before they will evolve like onix to steelix where onix need to be holding a metal coat)
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
You evolve it into Haunter at Level 25. To evolve Haunter into a Gengar, you need to trade it.
you must trade your haunter to evolve it into a gengar
haunter has to be traded to evlove haunter evolve into gengar in level 42
Haunter does not evolve into Gengar at a certain level. Haunter needs to be traded to another player. Once he is traded, he will evolve.
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
You evolve it into Haunter at Level 25. To evolve Haunter into a Gengar, you need to trade it.
You'll need to trade for a Haunter in order for it to evolve into Gengar.
you must trade your haunter to evolve it into a gengar
OF COURSE!! you'll need to trade an haunter to a friend, and haunter will evolve TO GENGAR
haunter has to be traded to evlove haunter evolve into gengar in level 42
You have to trade haunter to a friend to evolve it.
Haunter will only evolve through trade.
Gastly evolves into Haunter at level 25, then trade it and it will evolve again into Gengar.
you have to evolve him into a haunter first then trade haunter to someone and it will evolve
In order to evolve Haunter, u have to trade and it will evolve into a Gengar.
Haunter does not evolve into Gengar at a certain level. Haunter needs to be traded to another player. Once he is traded, he will evolve.