The pirates look a lot like the video slot game you expect from this name. These symbols contain everything from Treasure Island, including a pair of machete, treasure maps and boxes, cannons and telescopes.
Then consider the bonus multiplier and the presence of wild and scattered symbols, and you are now considering serious revenue potential. Each winning spin can double or no change - simply guess the color of the mold as red or black. Success and double your win. Guess wrong, lost everything. If it is not enough, there is a bonus game!