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Invaders from the Planet Moolah
RTP92.97%
Volatility—
Star Trek Red Alert
RTP96%
VolatilityMedium
Sizzling Moon
RTP96.14%
VolatilityHigh
Starburst
RTP96.1%
VolatilityLow
Star Watch Fire
RTP94.1%
VolatilityHigh
Star Trek - Against All Odds
RTP95%
VolatilityMedium
Star Trek
RTP94.99%
VolatilityLow Medium
Wild Gems
RTP95.4%
VolatilityLow Medium
Little Green Men Nova Wilds
RTP96.17%
VolatilityMedium High
Neptune's Kingdom
RTP0%
Volatility—
Sparky & Shortz Hidden Joules Slot Comparison
 Sparky & Shortz Hidden Joules | Invaders from the Planet Moolah | Star Trek Red Alert | Sizzling Moon | |
|---|---|---|---|---|
User Score | (120) | (58386) | (12669) | (10053) |
Return to Player | 96.2% | 92.97% | 96% | 96.14% |
Volatility | Medium High | — | Medium | High |
Min Bet | 0.1 | 0.25 | 0.35 | 0.2 |
Max Bet | 100 | 125 | 105 | 10000 |
Max Win | — | — | — | — |
Autoplay | No | No | No | Yes |
Bonus Buy | No | No | No | No |
Bonus Rounds | No | Yes | Yes | Yes |
Cascading Reels/Avalanche Feature | No | No | No | No |
Number of Paylines | 0 | 25 | 25 | 15 |
| Play Invaders from the Planet Moolah for Free | Play Star Trek Red Alert for Free | Play Sizzling Moon for Free |
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Go and Play
Send your giant robot into outer space when you play the Sparky & Shortz Hidden Joules slot machine, and enjoy one of the best online slots by Play’n Go. Win prizes by clustering aliens, crystals, and wilds. Trigger special wilds and multipliers when you play Sparky & Shortz Hidden Joules on mobile, tablet, or desktop.
Fill the Boost Meter
Wager 0.1 to 100 coins a spin when you play the Sparky & Shortz Hidden Joules slot machine and win prizes by clustering 5-25 matching aliens or crystals. All winning combos trigger a cascade, with new symbols replacing winning ones for more chances to collect prizes. Fill the boost meter with winning clusters to increase the prize multiplier at the top online slot sites.
Go Wild for Big Wins
Trigger up to a 25x prize multiplier with 2x2, 4x1, and 1x4 mega symbols. Land the special wild to trigger four different wild features:
Land all four special wilds to trigger up to three 2x2 Spark Wilds. Play Sparky & Shortz Hidden Joules slot online at the best real money casinos and win up to 6,000x your bet with these exciting features.
Symbol
Top Prizes
Red Aliens
25,000
Green Aliens
20,000
Blue Aliens
10,000
Crystals
1,500 – 2,500
Enjoy More Space-Themed Slot Adventures
Once you’ve had fun with the Sparky and Shorts Hidden Joules slot machine, spin the best new space-themed slots from other software providers. Activate top features and win big prizes when you play Deep Space Conquest by Urgent Games or Sands of Space by Genii.
Reveal this Hidden Joule
Now you’ve read our Sparky & Shortz Hidden Joules review, play this exciting space-themed slot game at recommended online casinos. Win big prizes with clusters, cascades, mega symbols, special wilds, and boost-meter increasing multipliers.
Play Sparky & Shortz Hidden Joules for free or real money. Spin more top slots by Play’n Go below.