Golbat is a happiness evolution so it can evolve at any level.
you need to make your golbat have a high friendship, then level it up
evolves at level 22 and evolves to crobat with friendship it evoles into "golbat" at level twenty two. Golbatwill evolve into by being really happy.
Friendship
get freindship with a golbat
Pretty much every cave.
Provided you have the national Pokedex. Yes.
give golbat lotsa love until it likes you. ( Pokemon leafgreen firered ) go to daisy's house and see if the golbat likes you. ( others ) i have no idea
Make a Golbat level up on a high friendship level.
It evolves at level 22 into Golbat. Golbat evolves with happiness into Crobat.
Golbat will evolve if it has max friendship with its trainer which means it can evolve at any level.
There is no specific level for golbat to evolve it needs to be loyal to it's trainer in order to evolve.
Nothing. You need to make Golbat to have Friendship or Happiness.