Players must take on the role of a Pokemon Trainer in the Unova region. As they work to unravel the mystery behind Black Kyurem and White Kyurem, they'll need to face down opponents such as Gym Leaders and other Pokemon Trainers. The Unova region has changed and grown in the two years since the original Pokemon White Version game. The first areas players travel through are completely new, and some characters from the previous games have grown and moved into different roles.