There are 3 main special features that can lead to significant payouts in Wonders of Christmas. First is the Frames system - when Gift symbols land on the reels, they create Frames on those positions. Occasionally these become Active Frames, turning that spot and adjacent Frames into Wilds for big wins. The Free Spins Multiplier feature sees Gift symbols fill a meter - when full, the bonus multiplier increases up to 1,000x for the Free Spins round. Finally, the Free Spins feature awards coin symbols with multipliers, and all wins get boosted by the built-up bonus multiplier.