Play Thunder Coins XXL Hold and Win! Any Bonus symbol can trigger the Pile of Gold Feature, boosting your chances to instantly enter the main Bonus Game. Get a Bonus symbol on every reel to trigger the Hold and Win style feature. You get 3 initial respins, which reset with every new symbol. Only valuable Bonus and sticky Thunder Bonus symbols will land, with prizes up to 8x the bet! Collect values and aim for one of the four fixed jackpots : MINI, MINOR, MAJOR, or GRAND.