The oyster shell is the game’s scatter, and is liable to appear anywhere on the reels. If you happen to hit three or more, you will activate the Great Blue bonus game. you will automatically begin with eight free spins with a 2x multiplier, whereupon you will need to choose two of the five oyster shells to win further free spins and/ or multipliers. At best, you can win 33 free spins and/ or a multiplier totaling up to x15.
What’s more, free spins can be triggered during free spins; you will win 15regardless of how many scatters you hit, but you will be entitled to the same multiplier you have for the triggering spin. There is no limit to the number of respins you can potentially win.