Up, up, down, down, left, right, left, right, B, A, Start.
Also, I'm officially in love with the gyms of BW2. The first gym is just so lovely and generic. Just the way I imagine it when I hear the words "Pokémon Gym": The wardrobes. The classroom. A large sand-covered back yard where battle courts are marked (they even added rakes to level the sand after use!). The spectator stands. The floodlights. Benches with toppled bottles of energy drink. The Gym Leader's stand, overlooking the courts. This is a place where Pokémon and trainers are trained. It's not just a building in which a strong trainer waits for random challengers to pass by.
The second... not a big, fancy building, but a beat-down club in the port area of Virbank. A worn locale in which a band practises their songs... and DOGARS!
It goes on and on. Oh, and the music. The lovely music, slightly different from Gym to Gym. I especially love the themes of the gyms in Mistralton and Driftveil.