Send the "Golden Retriever" out to dig up the "prize bone". And true to his loyal nature, he returns with a prize of up to 20x the total of your free game winnings. During normal play, "Golden Retriever" will substitute for all symbols except scatters and will double the prize amount when used in a winning combination. A free game feature is triggered when 3 or more "Bone" appear anywhere awarding 10 free games. During free games the win amount is added to a "Prize Pool". At the end of the free games, the "Golden Retriever" goes out to dig up the "prize bone" revealing a Prize Pool multiplier of up to 20x.