Barn Busters follows three sheep who take center stage as builders and planners, shaking up the usual farmyard fairy tale. The wolf character reacts whenever Big Bell Scatter symbols land, potentially activating the Double Wheel, which can grant instant prizes, trigger unique Sheep features, or unlock a second wheel for additional rewards. Instant Prizes pay out immediately when landed on the wheel. Sheep Character features provide six re-spins, with different types of Frames that can upgrade from Hay to Wood to Gold as the grid fills. Filling the grid with Gold Frames and landing another Big Bell Scatter pays out a set prize. Barn Spins are triggered by landing three or more Big Bell Scatters, starting with varying Frame types depending on how many scatters triggered the feature, and can be retriggered up to a cap. During Barn Spins, Frames are created and upgraded, and at the end of the feature, all Frames convert into barns that reveal multiplier prizes based on their material.