Mayan
Any 5 or more matching symbols in a single cluster on the gird will trigger a win - all winning combinations will also explode and cascade, allowing more symbols to drop down, often resulting in multiple combination wins. When a Wild lands it will fly up to one of the Golden Totems and have a chance to trigger a multiplier of up to 50x - multiple Totems can activate, with the values added together for a possible maximum multiplier of 250x.
The Free Spins feature is triggered when 3 or more Bonus symbols land anywhere on the grid, either on the initial drop or during cascades, awarding 8 spins for 3 symbols up to a maximum of 20 spins for 7 symbols. After each Free Spin the lowest Golden Totem multiplier is removed, meaning the minimum multiplier that can be triggered will always be increasing, leading to higher potential as the feature progresses.
During a game round, winning clusters will not be removed. Instead, non-winning symbols will be removed, then winning symbols will cascade down and get locked in place, then new symbols will cascade in to fill the grid. These new symbols can connect to the existing winning symbols to increase the size of the clusters or create entirely new clusters. The game continues to cascade until no new winning combinations are created.