On every spin in the main game and Free Spins, unless the Bomber Feature is active, 1 or more reels will be Mystery Reels. A Mystery Reel is a reel that consists of a stacked reel of mystery symbols. After the reels have stopped, if there are mystery symbols on the reels, they transfer into 1 random symbol except for a Scatter.

3 Scatter symbols appearing anywhere on reels 3, 4, and 5, in the main game activates 10 Free Spins. During Free Spins, the Mystery Reels consist of both Mystery symbols and Wild symbols. Free Spins are played at the same bet level and coin value as the round that activated Free Spins. The number of Free Spins awarded is according to the paytable. Additional Free Spins cannot be won during Free Spins. The total win field includes any wins during Free Spins added to any wins from the round that activated Free Spins. Free Spin wins are added to any bet line wins.

The Bomber Feature can be activated randomly before a spin in the main game only. A number of bombs occur on the reels and then create at least 10 overlay mystery symbols. The maximum number of bombs that appear on the reels is 5 and the maximum number of overlay mystery symbols produced by the bombs is 15. Each bomb consists of a cluster of mystery symbols. Once each bomb has generated the mystery overlay symbols, the reels spin with a symbol being chosen in the same way as the Mystery Reel Feature. Free Spins cannot be activated during the Bomber Feature.