The Thunder City Gym (Lightning Stadium) is located in the heart of Thunder City. It is run by the rockstar, Bolt and the DJ Toni.

The Gym itslef is in a literal stadium. People from all around the city fill the seats as challengers come and go to face Bolt or Toni. This same stadium is also used for Bolt's concerts with his band, The Thunderbolts. 

The stage upon which he battles and performs is located directly in the middle, underneath tons of spotlights. It is made out of wood and metal, whith pyrotechnic rigs on each corner.