Wicked Grin Slot Review
by Hacksaw GamingReleased Oct 8, 2026
A black-and-white 1930s cartoon slot where every major win depends on landing expanding coin skulls across the bottom row of the grid.

Specifications
| Game Type | Slots |
|---|---|
| RTP | 96.27% |
| RTP Range | 86.28-96.27 |
| Volatility | Medium |
| Max Win | 10,000x |
| Grid | 5x5 |
| Paylines | No paylines - All-Scatter, 6 or more matching symbols anywhere on the grid pay |
| Min Bet | $0.1 |
| Max Bet | $100 |
Hacksaw went with a medium volatility setup for Wicked Grin, which is a departure from their usual high-risk format. The game uses a 5x5 grid with a scatter-pays system: six or more matching symbols anywhere in view award a payout, remove themselves, and let new symbols drop down. The RTP sits at 96.27%, volatility is rated three out of five, and the top payout reaches 10,000x your bet.
Nearly everything that pays beyond small pocket change hinges on a single mechanic: getting a grinning skull on the bottom row to convert the reel above it into cash.

Landing on the red bottom row
The Wicked Grin symbol shows Boney Bill's skull face on a silver disc. It carries no payout by itself, but landing one on the bottom row causes it to expand upwards across the entire reel once regular symbol wins clear. Every spot on that reel flips into a coin or a multiplier. Bronze coins range from 1x to 4x, silver from 5x to 9x, gold from 10x to 50x, and diamond coins land at 100x, 150x, 250x, and 500x. Multipliers span from x2 to x20.
Multipliers add together rather than multiply each other, and their reach is directional. They only boost coins resting above them or on neighbouring reels on higher rows, and they cannot land on the very top row. A gold Epic Wicked Grin can land anywhere and forces every other skull on the screen to expand. The catch with standard skulls is severe: landing on any of the upper four rows does nothing, effectively turning that square into dead space.

What happens between skull drops
The base game keeps things straightforward. Six matching symbols anywhere trigger a tumble, with card suits paying 0.10x and the blue 7 paying 0.50x for six. Since there are no wild symbols, collectors, or random reel modifiers, you are mostly relying on successive tumbles to break even while waiting for a bottom-row hit.
The red tint on the bottom row makes the objective clear immediately. Small payouts arrive often enough to slow down balance drains, but reaching the 10,000x cap requires hitting a skull on the bottom of all five reels on the same spin.

Stashing coins against bank multipliers
Hitting an expanding FS scatter on the bottom row launches free spins. Each covered spot reveals a number between 1 and 3, combining for a total of 5 to 30 free spins. A red FS scatter triggers Stash N Stack, while a gold Super FS scatter awards Coin Craze.

Stash N Stack mounts a multiplier plaque above each reel starting at x1. Whenever a skull expands on a reel, its coins are multiplied by that plaque, and the plaque value increases by one for future spins. Coin Craze uses collectors above each reel that store all landed coin values across the entire feature, applying revealed multipliers to the full accumulated sum. The downside in both modes is that cold reels never build up value, leaving idle plaques sitting at x1 if skulls fail to visit them.

Choosing buy options and checking the math
The feature menu includes four different choices. BonusHunt costs 3x the bet per spin for five times the bonus trigger chance and runs at 96.39% RTP. The Grinny option costs 50x per spin and guarantees at least one skull lands, though not necessarily on the bottom row where it actually activates, pulling the RTP down to 96.23%. Direct access to Stash N Stack costs 80x (96.26% RTP), while Coin Craze costs 200x (96.28% RTP).
Casinos can also configure this title across lower RTP settings of 94.32%, 92.28%, and 86.28%.
Classic rubber-hose styling
The visual presentation leans into 1930s rubber-hose animation, framed in sharp black and white with Boney Bill hosting beside the grid. Free spins shift into a stylized checkerboard floor that gives the reels great depth.
Wicked Grin is a great pick if you want the studio's signature art style without suffering through long, punishing losing streaks. The entire game depends on that bottom row, but the steady flow of small hits and clear coin mechanics make it well worth a few spins.

Played and reviewed by the SlotsReach editorial team · Published 29 Aug 2026