I continued to wander around the Nimbasa City Gym and I rode on the shuttles and battled trainers as I moved along the roller coaster tracks. I had to leave the Gym at one point to heal my injured Pokemon, then I reached Gym Leader Elesa's spot upon re-entering the Gym. I challenged her to a battle and I used my Krokorok against Elesa's first Emolga. I defeated it with a critical hit Crunch attack, then I used Gurdurr against her Zebstrika. I defeated it with a couple of Wake-Up Slap attacks, then I switched back to my Krokorok to defeat Elesa's second Emolga. Afterwards I received the Bolt Badge from her as well as the Volt Switch TM and I left the Gym to heal my Pokemon again at the local Pokemon Center.