The main scene shows the sunlight streaming down to an underwater setting, with various fish and some junk on the sea floor. It is only possible to re-trigger the spins once more to get 5 additional ones, but you couldstill get big wins with the extra wilds on all the reels besides the first. That symbol could appear in stacks of 2 as well, making it far more important for you to activate as many pay lines as you possibly can. In this slot gamblers will get the Extra Wild symbol in every free spin on the 2nd, 3rd, 4th or 5th reel. The winning can be gambled as well. With stacked symbols, wilds and 50 win lines in the same game, youll know that the potential for some extra big wins is there. The colour-predicting Gamble feature is available here too. Find out more by playing the free Orca slots online. With 50 win lines in play you will have plenty of opportunities to use these wild symbols. The underwater setting is both around and underneath the reels, coming into view as they spin. The icons get featured on the four rows provided on the screen. Most of the major casino slot developers release games where the game action is focused on underwater adventures. Out of all the features that make the Orca stand out as a modern slot, the number of pay lines definitely deserves your full attention. This, novomatic online slot machine game requires one to form a series of similar symbols on an active payline.