Thunder Coins XXL: Hold and Win is a retro-themed online slot with the main Bonus Game triggered by landing a Bonus symbol on every reel. This respin feature only uses Bonus and sticky Thunder Bonus symbols, starting with 3 respins that reset with every new symbol. Look out for the Pile of Gold Feature in the main game, which can randomly drop enough symbols to instantly trigger the bonus! When the Bonus Game ends, collect all values and aim for the GRAND, MAJOR, MINOR, and MINI Jackpots for electrifying payouts