Bison Rising Megaways Jackpot King uses a 6 reel grid with a variable number of symbols per reel. Wins are formed by matching symbols across adjacent reels, providing up to 117,649 ways to win. The base game includes mystery symbols that reveal matching icons to assist in creating combinations.

The free spins bonus is triggered by landing 4 diamond scatters, allowing players to choose their preferred volatility level. During this round, an unlimited multiplier increases after every reaction. The game also includes the Jackpot King progressive system, which can be triggered randomly on any spin to award cash prizes or one of three jackpots.