Pokémon badges

A 'badge within the Pokémon series is an item to show that a trainer has defeated a Gym Leader. Trainers need to collect all the badges from the a region to be able to challenge at that regions Pokémon League.

In the games, badges affect a Pokémon's behavior. A symbol of competence on the Trainer's part, badges force traded Pokémon under a certain level to obey. Additionally, Trainers cannot have a Pokémon use an HM move outside battle without the appropriate badge. Also, beginning in the fourth generation, the number of badges a Trainer possesses affects which items Poké Marts sell. The more badges, the more items that become available for purchase, with more expensive items generally appearing after more badges are obtained.

Orange League
These sets of Badges only appear in the anime. Trainers must receive these Badges from the Orange Crew.