Jackpot Inferno slot has a free spins bonus feature that is triggered by three to five bonus icons. The bonus awards free spins and multipliers, which elevate the winning potential. Three symbols award six bonus spins and a 2× multiplier, while four symbols result in ten free spins and a 5× multiplier for the total wager. Five bonus icons, on the other hand, will award twenty bonus spins and a 10× multiplier.