Do you really think it's not possible? Look around, they are here! Zombie apocalypse has come and only the strongest will survive. If you brave enough try to stay alive...or say good bye to some of your body parts. Yummy!
A player can Risk his winning and get one of the expensive Free Spins series instead
For non–winning bets, a player can Buy Free Spin series
With a certain probability, up to 5 random reels in the base game can be transformed into Wild Reels
Free Spins series, where Wild Zombie symbol turns all hero pictures into Wild Zombie Symbol
Extra free games can be won as often as their initial combinations appear