Sparky and Shortz Hidden Joules

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Sparky and Shortz Hidden Joules Slot

Sparky and Shortz Hidden Joules Free Demo Play

Enter the futuristic world of slot machines with Sparky and Shortz Hidden Joules! The successor to Sparky and Shortz, which made its debut in October 2021, this slot machine is ready to take you on an adventure full of excitement and surprises.

This time, Play’n GO has clearly taken on the challenge of getting more out of the earlier Sparky & Shortz, and this is reflected in Sparky and Shortz Hidden Joules. Discover the revamped features and enjoy the immersive gameplay this slot has to offer.

The Best Online Casinos & Bonuses to Play Sparky and Shortz Hidden Joules for Real Money

Sparky and Shortz Hidden Joules - Slot Review

In this exciting slot, the cluster pays mechanism reveals its magic on a 7×7 playing field. Winning combinations form by at least 5 identical symbols that are horizontally or vertically adjacent to each other.

The payout percentage of Sparky and Shortz Hidden Joules is at its highest at 96.20%. However, there are variations of the slot machine with lower percentages, as low as 84.20%. Fortunately, this is not the case at most online iDEAL casino.

The volatility of the game is characterized as medium to high, meaning that the chances of big wins are present, but intermittently. During each spin you can vary bets, starting from a modest $0.10 up to a maximum of $100. Moreover, Sparky and Shortz Hidden Joules offers the opportunity to win as much as 6,000 times your stake, opening up a world of potential for you.

Sparky and Shortz

Help Sparky and Shortz save their kind!


Sparky and Shortz Hidden Joules introduces an exciting quartet of features that have a big impact on game play: mega symbols, the boost meter, wild symbols and the free spins feature.

Mega symbols

Special alien symbols and crystal symbols transform when they appear in a specific cluster. These clusters can be 2×2, 4×1 or 1×4. These mega symbols can orden split into four units of the particular symbol. But here comes the clever part: these mega symbols increase the win multiplier by +1. This happens every time a cluster of 2×2, 4×1 or 1×4 alien symbols or crystal symbols turns into a mega symbol. After each spin, the win multiplier resets again.

PROs & CONs of Sparky and Shortz Hidden Joules


  • 6 different wilds
  • Uses the cluster pays mechanism
  • Includes win multiplier that can go up to a maximum of x25


  • We found nothing significant

Boost meter

The boost meter in Sparky and Shortz Hidden Joules can further increase the win multiplier. Spinning winning combinations with the number of symbols indicated by the boost meter can raise the boost meter four levels.

  • Level 2 increases the win multiplier by +2
  • Level 3 increases the win multiplier by +3
  • Level 4 increases the profit multiplier by +4
  • Level 5 increases the profit multiplier by +5

Please note that the win multiplier can never exceed x25.

Wild symbols

The world of Sparky and Shortz Hidden Joules is enriched with different types of wilds. One is a regular wild, while there are 4 special wilds. When a special wild is involved in a winning combination, it activates the corresponding feature of that special wild.

  • Red special wild creates mega symbols on the playing field.
  • Yellow special wild removes crystal symbols from the playing field.
  • Purple special wild adds any number of wilds to the playing field.
  • Green special wild destroys any number of symbols and re-adds the same number of random symbols.

By collecting all 4 special wilds during one spin, you will be rewarded with the mega Sparky wild, which significantly increases the chance of activating the free spins feature.

Sparky and Shortz compared to 4 other Play n Go slots

Slot nameMax. winThemeMin. betMax. bet
Sparky and Shortz6,000xAnimals$0.10$100
Canine Carnage3,000xAnimals$0.10$100
Shamrock Miner5,000xMining$0.12$60
Boat Bonanza5,000xFishing$0.20$50
Mount M13,000xAnimals$0.10$100

Sparky and Shortz Hidden Joules free spins

During the base game of Sparky and Shortz Hidden Joules, whoever spins a scatter on reels 1, 3 and 5 at the same time will earn 10 free spins. Similarly, while playing the free spins feature, you can earn 5 additional free spins.

While Sparky and Shortz Hidden Joules certainly puts a fresh spin on the game, we can’t really say it is the king of upgrades compared to its predecessor. Some elements even seem to be a step down. For example, the max win has been scaled down. But hey, the cluster pays mechanism, special wilds and mega symbols definitely add some excitement!


The provider that developed the slot is Play’n Go.

The slot payout is worth 6,000 times the bet.

The symbol worth the most on the slot is the red colored alien.

Sure, you can set autospins for up to 100 spins.

Software Play N' GO
Slot Types Megaclusters
Reels 7x7
Paylines Cluster Pays
Slot Game Features Avalanche, Cascading Symbols, Colossal Symbol, Free Spins, Scatters, Symbol Collection, Symbol Swap, Wild Symbol
Min. Bet 0.10
Max. Bet 100
Slot Themes Aliens
Slot RTP 96.2%
devices Mobile versionTablet versionDesktop version
Sparky and Shortz Hidden Joules Slot by Play N' Go

About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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