How the bonus starts
Four or more Scatter symbols in the base game open 15 free spins. Extra Scatter symbols beyond four do not increase the starting package in the original version.
Cumulative multiplier
During the free spins, winged multipliers from 2x to 500x that land on a winning spin are added to the total counter. The value remains active until the feature ends and is applied to later wins according to the bonus rules.
The multiplier does not create a payout on its own. A group of eight or more matching symbols must first appear on the reel.
Retrigger
Three or more Scatter symbols during the bonus add five spins. The counter does not reset when the feature is extended, so the retrigger gives extra time to the value already collected.
What the bonus does not guarantee
Fifteen free spins can pass without a strong cluster, and a high counter can appear late. The bonus is part of a high-volatility model, not a guarantee of a big result. A comparison of the series bonuses is collected in a separate article.