The whale is the wild symbol, it can substitute for all the other symbols, except the scatter symbols, to help and form wins. It can land stacked on the reels and will double any payouts to which it contributes
The oyster with a pearl is the scatter symbol and it offers scatter payouts of 2, 5, 20 and 500 times the total bet for landing two, three, four or five of them respectively anywhere on the reels.
Great Blue Jackpot offers a number of bonus features. If you land three or more pearl scatters anywhere on the reels the Pearl Bonus is triggered. You will initially be awarded 8 free spins with a 2x multiplier. However, first you need to pick from three more seashells to win more spins and larger multipliers. This way it is possible to win up to 33 free spins with a x15 multiplier. Best of all, landing three more scatters during the spins will award you 15 more free spins.
As the slot’s name suggests there is a progressive jackpot up for grabs. There are actually four jackpots available and the jackpot game can begin after any spin, regardless of how much you bet or what symbols land on the reels. In the game you need to pick from twenty coins to reveal what colour they are. Each colour represents one of the four jackpots and you win the corresponding jackpot once you have found three matching coins.
In addition to the progressive jackpots, Great Blue Jackpot offers a top fixed payout of 10,000x for landing five wilds on a payline. The shark and turtle can both can payout up to 750x, the yellow fish can payout up to 400x, and the seahorse and starfish can both payout up to 250x.