Each winning combination increases the multiplier by x1, affecting subsequent wins in the same spin. The multiplier persists during Avalanches but resets between spins, except in Bonus Spins and Super Bonus Spins, where it carries over until the end of Bonus Spins and Super Bonus Spins.

Two types of Wild symbols can appear anywhere on the reels in the game: regular Wild and Special Wild. Wild symbols substitute for all symbols except for the Scatter symbol and the Special symbols. Wild symbol substitution pays the highest possible winning combination on a scattered win, according to the Paytable. In main game, only regular Wild symbols can land on the reels. In Bonus Spins and Super Bonus Spins, special Wild symbols can land on the reels with an additional multiplier value. When a win including a special Wild symbol is awarded, the multiplier is increased by the value shown on the special Wild symbol, for each winning combination obtained. In Bonus Spins, only special Wild symbols with +2 multiplier value can land on the reels. In Super Bonus Spins, one special Wild symbol with +3, +4, +5, +6, +7, +8, +9, +10 multiplier value is randomly selected and guaranteed to land on the reels during each spin.

The game starts with a 4-reel, 6-row play area. When the Bomb or Purge features are triggered, they may unlock additional positions, up to a maximum of a 6-reel, 8-row play area. In main game, additional positions remain open during Avalanches and reset at the end of each spin. In Bonus Spins and Super Bonus Spins, additional positions remain open until the end of the game mode.

When the Bomb symbol explodes, it doubles the multiplier for the current spin. Multiple Bombs explode at the same time, and each bomb doubles the multiplier for the current spin. The Bomb symbol is sticky during an Avalanche and remains fixed in position until the end of the Avalanche.

When the Upgrade symbol lands on the reels, it replaces itself and a random number of low-pay symbols in the play area with the highest or second highest pay symbol on the reels, randomly selected.

When the Change symbol lands on the reels, it replaces itself and all regular symbols in the 8 surrounding positions with one of the regular symbols in the 8 surrounding positions, randomly selected. If no regular symbols are present, the Change symbol is replaced with the lowest-pay symbol.

When the Purge symbol lands on the reels, it removes itself, all wall portions and all medium and low-pay symbols in the play area, making way for an Avalanche.

In main game, when 3, 4 or 5 Scatter symbols land on the reels they award 8, 10 or 12 Bonus Spins respectively. In Bonus Spins, landing a Scatter symbol awards 3 extra Bonus Spins. Landing a Super Scatter awards 3 extra Bonus Spins and upgrades the game to Super Bonus Spins.

In main game, when 3 Scatter symbols including at least 1 Super Scatter symbol land on the reels, they award 12 Super Bonus Spins. In Super Bonus Spins, one special Wild symbol with +3, +4, +5, +6, +7, +8, +9, +10 multiplier value is randomly selected and guaranteed to land on the reels during each spin. Bonus Spins are played at the same bet value as the round that activated Bonus Spins. At the end of Bonus Spins, the total win from Bonus Spins is added to any wins from the round that activated Bonus Spins, and the game returns to the round that activated Bonus Spins.

For 5 times the bet, more than 7 times more likely to enter Bonus Spins or Super Bonus Spins.

For 10 times the bet, at least one Special Feature is guaranteed to activate in the spin.

For 25 times the bet, start the spin with a random multiplier value between x5 and x10.

For 100 times the bet, at least 3 Scatter Symbols are guaranteed to land on the reels, activating Bonus Spins.

For 500 times the bet, at least 3 Scatter Symbols, including a Super Scatter, are guaranteed to land on the reels, activating Super Bonus Spins.