One of the most successful moments in the game is that you see dolphins on reels 2 and 4. Then the two expanded symbols will remain there, and reels 1, 3 and 5 will overflow freely 5 times, so it is like a replacement for free spins. Another thing that surprises you wildly is that in this game, it will replace Scatter, not just other symbols.
Just look at the treasure chest symbol, you have already thought of winning a huge victory. Graphics and animation will also reward you with a delightful effect, making you feel at home in the deep blue waters.