Pokémon White 2 introduces several new features to the Pokémon series. One notable feature is the ability to re-match Gym Leaders, which allows players to battle Gym Leaders multiple times to earn more Badges. Another feature is the Pokémon World Tournament, which allows players to battle other trainers from around the world. Additionally, Pokémon White 2 includes a new type of Pokémon, the "Hidden Grotto," which can be found throughout the Unova region.