Explore the Wildernessįans of slot machines themed around wildlife will find a selection of familiar items on the reels of the Big Buffalo Megaways online slot. Features of this beautiful-looking game include wild substitutions and up to 100 free spins, where wilds multiply payouts by up to 5x. Play the Big Buffalo Megaways slot machine, where the majestic wildlife of North America fills six reels and up to seven rows of symbols.