Manta Mayhem by Play’n GO takes us back underwater. This time we are not chasing bass, sharks, crabs or hanging out with old fishermen. Instead, we have a big friendly manta ray, floating around the reels on a bright coral reef. But under the colourful surface this is still a high-volatility slot, that comes with a 9,000x max win potential.
This is one of those fishing slots where the base game is quite simple. Main gameplay includes collecting pearl symbols in the base game. These pearls can trigger a Clam the Prize feature. And when it gets triggered you need to pick a clam to reveal your free spins setup. Clams can unlock bonus modifiers and boosters for your free spins bonus round. So, each bonus round may be unique when different features are activated. Carry on reading our Manta Mayhem slot review for more details.
Manta Mayhem Slot Information
| Manta Mayhem | Stats |
|---|---|
| Number of Reels and Rows | 5×3 |
| Pay Lines | 20 |
| Minimum Total Bet | £0.10 |
| Maximum Bet | £100 |
| RTP | 96.2% |
| Max Win | 9,000x |
| Bonus Features | Pearl Collection, Clam the Prize, Free Spins, Sticky Wilds, High Pay Wilds, Booster Picks, GO Ultra |
| Feature Buy Option | No |
Manta Mayhem uses a 5-reel, 3-row layout with 20 pay lines. This is a high volatility slot with a standard RTP of 96.20%. So, big wins are not meant to come easily. However, there are lower RTP versions which make them even more scarce. So, as always with Play’n GO slots, it is worth checking the version at your casino before you start playing.
A 9,000x max win gives this slot good potential. But you will have to reach the free spins bonus round for a chance to hit the big payouts.
Where To Play Manta Mayhem
Manta Mayhem is available at online casinos that feature Play’n GO slots. You can play the demo version for free, below, or try it for real money at our recommended casinos.
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How To Play Manta Mayhem Demo Slot
Manta Mayhem plays like a normal 20 pay line slot. Wins come from matching symbols on adjacent reels, from left to right. Most of the base game action comes from line wins and collecting pearl symbols by the manta ray above the reels. Here’s a quick guide to playing Manta Mayhem slot.
- Set Your Bet & Spin – Choose a stake between £0.10 and £100, then spin the reels and look for winning combinations across the 20 pay lines.
- Watch for Pearl Symbols – Pearl symbols can land on any reel. When they land, they are collected by the manta ray, gliding above the reels.
- Trigger Clam the Prize – Pearl collection can randomly activate the Clam the Prize feature, where you pick a clam to reveal your free spins and booster setup.
- Pick Boosters – Before starting the bonus round you pick pearls to reveal boosters and modifiers. Boosters can be: extra spins, sticky wilds, stacked high pays, random wilds or win multipliers. These are then active for the full bonus round. If you’ve played Big Bass Amazon Xtreme before, then this feature is very similar.
Try the free Manta Mayhem demo slot to see how the pearl collection and Clam the Prize feature work. This is a slot where the base game can feel a little slow. So, the demo is useful to get a feel for it before risking real money.
Winning Combos & Payouts
Manta Mayhem has 9 regular paying symbols. There are 5 lower-paying card symbols and 4 higher-paying underwater creature symbols. Wins are made by landing matching symbols on adjacent reels from left to right.
Low Value Symbols: The low pays are the coral-style 10, J, Q, K, and A symbols. Payout for these are between 0.8x and 2.5x your bet if you get five of a kind.
High Value Symbols: The green prawn, blue octopus, purple eel, and red fish. Five symbols pay between 4x and 10x your bet.
Wild Win: Wilds pay, and five regular Wilds across a pay line can pay 20x your bet. Thus making the Wild the best regular line win symbol in the base game.
Special Symbols
Wild Symbol
The regular Wild symbol can land on all reels and substitutes for regular paying symbols. It does not substitute for the Pearl Scatter. It can also pay by itself, with five Wilds on a payline paying 20x your bet.
Pearl Scatter
The Pearl Scatter can land once per reel in the base game. Every Pearl that lands is collected by the manta ray above the reels. Collecting Pearls can randomly trigger the Clam the Prize feature.
Sticky Wilds
Sticky Wilds only appear if the booster is active going into the free spins. They can land on reels 2, 3, or 4, depending on which Sticky Wild booster you picked. These stay locked in place until the free spins feature ends.
High Pay Wilds
One of the free spins boosters can turn one randomly selected high-paying symbol into a Wild for the whole feature. Only one high-pay symbol can be selected.
GO Ultra Ante Bet Option
Manta Mayhem includes Play’n GO’s GO Ultra ante bet. This increases your stake by 50%. If Clam the Prize triggers while GO Ultra is active, then the chosen clam awards one extra free spin and one extra booster. Possible outcomes with the ante bet become 7 free spins with 4 boosters, 9 free spins with 5 boosters, or 11 free spins with 6 boosters.
Manta Mayhem Free Spins & Features
Manta Mayhem really kicks into gear when you trigger a bonus round. But to reach the bonus round, you need to collect scatter symbols. When scatters land on the reels, they are collected by the manta ray above the reels. Upon collecting the pearls, the free spins feature can trigger randomly with a Clam the Prize.
Stage 1- Clam the Prize
When Clam the Prize activates, you need to pick one of three clams. Each clam reveals one of three options which includes a set amount of free spins and active bonus modifiers:
- 6 Free Spins with 3 Boosters
- 8 Free Spins with 4 Boosters
- 10 Free Spins with 5 Boosters
Stage 2 – Free Spins Boosters
After you’ve revealed your number of spins and boosters, you then move on to the next clam picking stage. Now you have to pick the same number of clams as the number of boosters you picked. There are eight clams to choose from in this stage and each carries a different bonus modifier.
- 2 or 4 Extra Free Spins
- Stacked High-Paying Symbols
- Sticky Wilds on Reel 2
- Sticky Wilds on Reel 3
- Sticky Wilds on Reel 4
- One High-Paying Symbol Becomes Wild
- 2 or 3 Random Wilds on the Reels
- All Wins Multiplied by x2, x5, or x10
Note that all active boosters will stay in play for the full free spins round.
Conclusion
Manta Mayhem is a nice-looking underwater slot from Play’n Go. The theme is fun with the manta ray and pearls, and feels softer than most shark or fishing slots. But do not get deceived by the friendly look. This is still a high-volatility game where the base game can be quite slow.
Booster picks give the bonus some variety with a wide range of features. The downside is that nothing special happens until Clam the Prize triggers. And since the feature cannot re-trigger, a bad booster setup can make the bonus round feel a bit lackluster, occasionally.
So who is this slot for? If you like underwater slots and pick-style bonus games, then Manta Mayhem is something for you. It doesn’t have the most action-packed base game but the bonus is good enough to make it interesting.
Frequently Asked Questions
Yes, you can try the Manta Mayhem demo first to understand how the Pearl collection, Clam the Prize feature, and free spins boosters work.
The top RTP is 96.20%, but lower versions of 94.20%, 91.20%, 87.20%, and 84.20% are also listed.
The maximum win is 9,000x your bet.
Pearl symbols are collected by the manta ray in the base game, and this can randomly trigger the Clam the Prize feature. From there, you pick a clam to reveal your free spins setup.
GO Ultra increases your stake by 50%, but if Clam the Prize triggers, you receive one extra free spin and one extra booster in the bonus round.
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