Manta Mayhem Slot Review & Free Play

Manta Mayhem: A Pearl-Hungry Stingray Guards the Gate to Free Spins and 9,000x Payouts

When you swim through the waters of Manta Mayhem by Play'n GO, watch where you swim. A five-reel, three-row ocean slot with 20 paylines where a hungry stingray hovers above the grid and eats every pearl that lands. Feed her enough, and the Clam the Prize feature cracks open with free spins, stackable boosters, and a shot at 9,000x your bet.

Since I liked what I saw early on, I chose to skip the grind by enabling Go Ultra mode. It adds 50% to your bet and boosts the free spins package by one extra spin and one extra booster for whenever the feature triggers.

Only two or three decent hits kept me afloat. The standout one was a 21x return when multiple wilds lined up across the middle rows. But the current pulled harder than the wins pushed, and the low frequency of returns forced me back to regular mode before my balance drowned completely.

After more than 50 spins, I saw one 6x hit and not much else. The stingray ate exactly one pearl every three to five spins, but the Clam the Prize feature never opened. Both her eyes and the music kept hinting that something big was coming. After almost 200 spins total, nothing. My oxygen tank cracked, and I had to surface.

When the stingray eats enough pearls, you pick a clam that reveals your free spins count and number of boosters. Go Ultra pushes the best option to 11 spins with six boosters. Before the round starts, you pick pearls to reveal which ones apply, and they stay active the entire round.

Booster options include sticky wilds on reels two through four, stacked high-pay symbols, random wilds, an HP wild that turns one fish into a wild for the round, or a multiplier of 2x, 5x, or 10x on all wins. Free spins cannot retrigger.

Overall, Play'n GO delivers on all fronts here, no question. But sometimes, even with the average RTP of 96.2%, every spin pays far below average. If you are venturing into these deep waters, I’d suggest starting with the Manta Mayhem free demo above.