About this app
What is Masked Mayhem?
The more telling point for slots readers isn’t the game itself. It’s what the game represents: the fourth Halloween-branded entry in a single series, which shows just how aggressively Pragmatic Play iterates on its most recognizable slot IP.
Rather than building a new title from the ground up, the release uses Big Bass Splash 1000 as its base. The franchise’s signature Money symbol collection mechanic stays intact while a seasonal skin gets swapped in.
The headline mechanical difference is a shift in risk profile. This variant runs on a 5×3 grid with 10 paylines at an RTP of 96.50%, and the volatility has been eased to medium against the high-variance base game. That softens the swings while keeping the same top-end potential.
About Masked Mayhem
The Las Vegas Sphere has finally shown, not just teased, the upgrades coming to The Wizard of Oz when the refreshed production debuts next Friday (Sept. 25). Producer Ben Grossmann puts it plainly in a new preview video: “It’s not enough to just recreate the land of Oz. You have to feel like you’re inside of it.”
The logic is simple. A 75‑minute loop that people willingly sit through more than once needs fresh experiences. So, the world’s most technologically advanced theater just made itself more technologically advanced.
It’s still the same movie experience—just with more of the room participating.
These six additions sit on top of the effects that have been running since opening day on Aug. 28, 2025: tornado winds, swirling debris, fog, haptic seats, fire bursts, falling apples, and the flying monkeys version 1.0.
How to play Masked Mayhem
Merging Marlins and rewarding Free Spins build momentum throughout the game, creating opportunities for bigger wins.
