The Mustang Spirit Cash Stacks slot machine is a Native American-themed slot game by Ainsworth. Can you keep up with these wild horses and reign in your own free spins jackpot? Unleash your wild side as you run through the Wild West prairies side by side with mighty steeds in the Spirit of Mustang slot from Pariplay. When golden coins appear. One of the fourst four games in the Cash Stacks family is Mustang Spirit™. Spirit of Mustang is a 5-reel, 3-row slot packed with fantastic features. Spirit of Mustang is an online slot by Pariplay that features quite an unusual Wild West theme. Stampede your way to a major prize in Spirit of Mustang, a 5-reel slot that'll have you galloping all the way to the bank. . According to the number of players searching for it, Spirit of Mustang is not a very popular slot. Enter the heat of the desert to fill the game's five reels with. Spirit of Mustang is a slot machine by PariPlay. Run wild with Mustang Spirit, a new bonus-packed slot from Ainsworth. This five-reel, three-row slot has up to 25 paylines, an RTP of between per cent and. Spirit of Mustang. Get the winning action started with the Coin Collect feature. This game includes multi-denomination options, on screen credit prizes and much. Spirit of Mustang is an online video slot developed by Pariplay. With so many online slots to choose from.