Monster Power-Up: Halloween Bonanza is a spooky Halloween-themed slot by 18Peaches.
The slot is built on a 5x3 reel grid with 10 paylines and offers a theoretical maximum win of x10,000.
It also comes with special features such as Fixed Jackpot and Symbol-Driven Jackpot, adding extra jackpot targets alongside regular wins and extra jackpot targets alongside regular wins.
Reel Config
5x3
Paylines
10 Lines
RTP
80%
Volatility
-
Max Win
10,000x
Bonus Buy
50x
Several roles contribute to this profile, with differing counts and no clear one- or two-role emphasis. The jackpot family accounts for a separate reward route within the profile. The wild family brings combination-forming mechanics into the mix.
With numerous special features in its structure, this game has a broad mechanical repertoire spanning more individual systems.
Select a role to explore its contributing features.
Number of features contributing to each role. One feature can contribute to several roles.
Each bar counts the features that contribute to a functional role. One feature can contribute to more than one role. Bar lengths are scaled to the largest count within this game; compare the numbers when looking across games.
These counts describe feature composition. They are not win probabilities, payout contributions, or quality ratings.
Wild Instant Prize Collector is a unique hybrid feature where an Expanding Wild symbol gains the additional ability to collect instant cash prizes. This mechanic merges the traditional wild substitution power with direct monetary collection, offering players dual benefits from a single symbol. It fundamentally changes how an Expanded Wild interacts with other special symbols on the grid, transforming it into a powerful bonus activator.
A Retrigger means winning additional free spins by landing scatter symbols again during a free spins bonus round. Furthermore, some slots adopt an 'unlimited retrigger' system, which means there is no limit to the number of times it can re-trigger. In theory, if luck is on your side, the free spins can continue indefinitely, making it one of the most powerful features a slot can have.
Low Bonus Buy Price
This slot's bonus buy price is below the usual range for comparable slots. That makes buying the feature relatively accessible, especially if you want to try the free-spin round directly. Keep in mind that some games offer multiple free-spin tiers, and SlotWise uses the lowest available buy price as the reference. A lower price may also mean that the free-spin feature itself carries a lighter payout profile than higher-priced games.
Previews focus on playable demo access, slot specifications, and feature structure before a full 300SPINS™ review is available. They are designed to make the slot easy to inspect and compare, while leaving performance judgments based on actual play sessions to full 300SPINS™ reviews.
