Play Sparky and Shortz Hidden Joules at Betsson today! We have a huge variety of Casino games to choose from! Sparky & Shortz: Hidden Joules is a 7-reelonline slot game with instant play, autoplay, video slots, multiplier, wild symbol, cascading reels, mobile gaming. Play'n GO's loveable robots are back, and they're fully charged for a new and exciting cascading grid slot in Sparky & Shortz Hidden Joules. .