This slot has 5 reels and 25 paylines, which focus on life under the waves. The name of the slot is drawn on the huge blue whale. Bubble crystals and splash animations in the game are even reminiscent of some of the best land-based video slots.

At the beginning of the function, you will select 2 of the 5 enclosures to give you extra rotation and/or multiplier. You can win up to 33 rotations and x15 multipliers. The extra 3 scatters during this function will re-trigger it and reward the extra rotation at the same multiplier as the trigger rotation. Players who feel very fortunate can even try Great Blue's gambling after winning the base game. Guess the color of the card you want to draw next and win double bets! You can collect the victory at any time and let you go back to the basic game.