Escape the Zombie Laboratory with Wild Walker™, a 3×8 video slot boasting dynamic reels and a hair-raising Progressive Free Spins Feature with four levels, designed to tantalize your taste for horror! Keep an eye out for the Wild Symbol – it enjoys surprising you by changing its position on the screen with each spin.

The reels exhibit variations in the base game and at each level of the free game. In the base game and the initial free game level, 5 reels are active, while the remaining 3 consist of Overlay symbols. On the second free game level, 6 reels are active, and the remaining 2 consist of Overlay symbols. The third free game level features 7 active reels, with the remaining 1 consisting of Overlay symbols. In the fourth and final free game level, all 8 reels are active.

Free Spins are triggered by 3 or 4 Scatter symbols in the base game. Scatters covered by walking Wilds are not taken into account. Specifically, 3 Scatters activate the first level of the free game, offering 8 free spins, while 4 Scatters activate the second level of the free game, also providing 8 free spins. Scatter symbols themselves do not yield payouts, but the screen may contain paying lines alongside Scatters. Scatters accumulate during the same free game session, even when the level increases, but they are not accumulated in the base game. Upon collecting 3 Scatters during the free game, the next level is reached, and the player receives 2 extra free spins.

Once you reache the final 4th level of the free game, no further level-ups are possible. However, collecting 3 Scatters will still grant 2 extra free spins. Players can achieve 2 level-ups and 4 extra free spins if 4 new Scatters are obtained on the current free spin, and 2 Scatters are accumulated from previous spins. If the player is on the 3rd or 4th level, then 2 level-ups are not possible, and the player's level increases to the last level, accompanied by 4 extra free spins.

At the conclusion of the free game session, all accumulated Scatters not used for level-ups or free spins are removed. This ensures that the next free game session begins with zero accumulated Scatters. Once all free spins are exhausted, the free game concludes, and the player returns to the base game.
Not too long ago in a secret lab, Walter Prescott tested his newest serum… A serum that could turn any object it was applied to PURE GOLD! Eureka! It worked! Mad with power, join Dr. Prescott as he attempts to achieve even further glory in MADDER SCIENTIST.

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