Sovereign of the Seven Seasby Microgaming
Screenshots

Land 3, 4, or 5 scattered Cannon and you will be presented with three Barrels. Choose one and the game will become animated to reveal whether you have won 10 free games with 4x payouts, 15 free spins at 3x or 20 free spins with a 2x multiplier. The feature can be triggered again from within the free spins. The middle option affording 45x triggering bet in action is certainly the one to hope for.
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