The boulder badge, the cascade badge, the thunder badge, the rainbow badge, the soul badge, the marsh badge, the volcano badge and the earth badge.
...you beat the gym leaders
in most pokemon games, yes.
It is not possible to get a ninth badge in Pokemon FireRed. You can only get eight badges in Pokemon FireRed.
in pokemon pearl,diamond or platinum you have to eight badges in pokemon black and then trade kadabra to you from yourself and it will evolve
to get the eight badge go to viridian city after you have 7 badges and enter the gym
Yes, you need all eight badges to battle the elite four in Pokemon pearl.
...you beat the gym leaders
Collect ALL eight badges.
in most pokemon games, yes.
you have to get all eight gym badges
It is not possible to get a ninth badge in Pokemon FireRed. You can only get eight badges in Pokemon FireRed.
If you get all eight badges then you can verse the elite four. They are really good and if you beat them you become the champion.
You can enter the Pokemon League once you've defeated all eight gyms and have the gym badges.
in pokemon pearl,diamond or platinum you have to eight badges in pokemon black and then trade kadabra to you from yourself and it will evolve
get all eight badges and go through victory road
to get the eight badge go to viridian city after you have 7 badges and enter the gym
You have to get all eight gym badges