When you hear Great Blue, you may think of a huge, ruthless portrait of a water body filled with terrible creatures, ready to live. This is not the whole meaning of big blue. Instead, it portrays the underwater world as a friendly place full of beautiful, interesting creatures. In fact, this is a clear, beautiful ocean filled with turtles, starfish, seahorses and whales. In addition to the exquisite, easy-going demo, Great Blue has many rewards for entertaining under the water: the first is an impressive free spin bonus, activated by three or more pearl shells. Anywhere on the reel. Pick two of the five shells and win an incredible 33 free spins and an amazing 15x multiplier.