ElecTRONica begins tonight at Disney California Adventure with a high-energy welcoming show at Sunshine Plaza at 6p. Following the show, guests will enter the Hollywood Pictures Backot through the ElecTRONica archway. The buildings will feature “TRON:Legacy” images with light cycles zooming across the bulding facades. Along with the dance party ElecTRONica will present Flynn’s Video Arcade with classic 80s games and outside the arcade you can preview the unreleased “TRON: Evolution” video game and participate in a nightly tournament. Muppet*Vision theater will host “TRON: Legacy, Exclusive 3D Sneak Peek” with special effects exclusive to the park event.