A system for monitoring and configuring gaming devices interconnected over a high-speed network. Each gaming device includes a data communication node which allows the gaming device to communicate with a floor controller over a current loop network. The data communication network communicates with both the floor controller and the gaming device. In a multiple jackpot time bonus, the system activates a storm simulator which provides simulated lightning and thunder that vary in intensity with the value of a jackpot multiplier during a bonus period. The bonus jackpots are paid to players at the gaming device.