Mistralton City Gym is the official gym of Mistralton City that specializes in using Flying-type Pokémon. Its Gym Leader is Skyla. The player must navigate through the Gym's trainers before battling Skyla. As an added twist, the player must enter a cannon in order to advance further into the Gym and reach Skyla. In Pokémon Back and White version 2, the gym have a giant fan that is strong enough to blow the player out of the gym, the player need to navigate their way by hiding in a wall to protect themselves from the fan until they finally reach Skyla.