A video free slot machine game with 5 reels and 17 pay lines. The game features main game mystery features and a bonus game with free spins, symbol transformations and retriggers. When entering the Bonus game, the player gets to pick 3 cards (with an additional pick for every additional scatter) to determine the type of free spins played. The cards include extra free spins, additional multiplier on each win, a Mystery feature or a mid-win symbol being transformed into a wild. The effect of the picked card remains active throughout the bonus game with the exception of free spins which are added to the total of the remaining spins. In the Main game, a mystery feature may be triggered randomly on any spin. The mystery feature can be either a Wild Reel spin, a Random Wild spin or a Walking Wild spin with accompanying respins.