With unlimited free spins, you can also win 1 of 4 jackpots. There is no limit to the number of times you can re-trigger this feature, giving you the possibility of unlimited free rotation.
The game also comes with a Great Blue Jackpot feature that can be randomly triggered in any base game rotation - then you enter the jackpot game and you can guarantee to win one of the 4 jackpots. Visually, it is very similar to the original Great Blue - although it can provide sharper graphics and animation.