• Game Details

    Reels : 5
    Winning Lines : 40
    Coin Values $/?/€ : 0.01-0.25
    Max Coins per Line : 5
    Max Per Spin $/?/€ : 50
    Wild Symbol : Yes
    Scatter Symbol : Yes
    Bonus Features : Yes
    Progressive : No
    Software : Microgaming


    Katie Isaacson

    Do you think that hooligan gangs are in your city only? Then you just have never visited the deep city of Dolphin Tale Slot Machine. So, now you can make a trip to this underwater world and become a sea cop to arrest as much more crooks and catch cash prizes!

    Launch 5 reel 40 payline game by Microgaming to join brave blue squad with Dolphin Rookie and his team that is the most powerful peace-officers on the whole gambling sea bottom!

    Bust a crime wave and win Free Spins, splashing Multipliers and get all cash awards right now! Besides, the wild and extra wild add to your catch 😉



Rank Casino Name Bonuses Min Dep. Actions
1 Box24 Casino

25 free spins
200% unlimited bonus
$25 ReviewPlay
2 Black Diamond Casino

Black Diamond
up to 200% welcome package
$25 ReviewPlay
3 Quatro Casino

100% up to $100
up to 700 spins
$10 ReviewPlay


So let’s meet the main heroes of the slot! Dolphin Rookie, sultry Lucile, experienced turtle Karl, Merl, who is a really long arm of law, and old sea dog Chief. This is the best squad of sea gambling! So, crooks of the reef, tremble!

Get ready to reach the sea bottom? Then you need to get the flatted cargo of the real money bet. Beyond, here you will find a wide sea of coin sizes to choose from such as: $0.01, $0.02, $0.05, $0.10, $0.20 and $0.25. Plus you can increase your total cash stake by setting up to 5 coins per line activated.

Play with all 40 paylines to catch more wins and place the highest stake of $50 per spin to catch the biggest prizes. Thus, venture to play with 250 coins with the biggest value per game and find 5 Dolphins Rookie on the payline to seize the most stormy jackpot of $3,750! More prizes waves, undersea adventures and splashing features are waiting for you at Mermaid’s Millions slots machine!


The crime has an enemy and be sure that no one criminal can hide from The Rookie, who is a wild symbol that has a good nose for solving any crimes.

So that The Rookie can substitute any other symbols of the reel reef and create more winning combos. But, only Spy Clam can’t be replaced by wild Dolphin.



Spy Clam is a scatter symbol that helps the blue squad to patrol the reel reef and keep a watchful eye on… money prizes!

What is more, this scatter can help you as well. Yeap. So, Free Games and high payouts can become yours no matter paylines you activate and even without collecting combos!

Just find 2, 3, 4 or 5 Spy Clams scattered about the city and your total stake will be splashed by 2x, 3x, 10x or 50x Multiplier.

But if you get made 3 or more scatters then you will activate Free Spins Feature to catch all crooks of the underwater city and get BIG money for FREE!


Find the usual seaspects with the help of at least 3 Spy Clams for Free Spins! Maybe, it’s the best money award ever to get.

So, just choose your suspect from the following 5 busted criminals and win your bonus feature:

  • 25 Free Spins at the random 2x, 3x or 5x Multiplier
  • 20 Free Spins at the random 2x, 4x or 7x Multiplier
  • 15 Free Spins at the random 3x,6x or 8x Multiplier
  • 10 Free Spins at the random 5x, 8x or 12x Multiplier
  • 5 Free Spins at the random 10x, 15x or 20x Multiplier

Anyway, no matter what seaspect you choose you will get Extra Wild to catch more crooks in the city! Yeap.

Extra Wild randomly appears on the reels 2, 3 and 4 to replace one symbol and in the way to bring you more money wins.

Choose the best Free Spins Feature to play and win as much more cash prizes online! But remember, that Free Games can’t be re-triggered… Are you ready to sink to the gambling bottom? Then launch Dolphin Tale slot online to join the most profitable blue squad in and around the reef as well as in the whole world wide web! Just let’s go to find all seaspects on the reels and become a true hero… Rich hero 😉