It’s that time of the year when everyone, including software providers, is getting in a Halloween mood. Despite being from the Land Down Under, Big Time Gaming is not immune to this American tradition. That’s why the company has prepared something the players will surely enjoy. No tricks, just a treat, a thrilling and quite generous slot titled Boo.
Ghosts, ghouls, and massive wins await in the latest addition to the Big Time Gaming portfolio. Expect a spine-tingling experience with bountiful rewards for those brave enough to venture into a haunted graveyard. If you’re ready to tackle Boo, this article should get you prepared for your adventure.
No Need to Fear
Boo boasts an eerie atmosphere with a soundtrack that will send shivers down your spine. The graphics are colourful yet somehow still look suitable for a Halloween-themed game.
The action takes place on a four-reel, four-row grid, which doesn’t use paylines but instead offers 256 ways to win on every spin. Winning combinations are created by landing three matching high-paying or four low-value symbols on adjacent reels, starting from the leftmost one. Speaking of symbols, playing cards are the lows, while four different ghosts serve as the game’s higher-paying icons.
Lows pay from 0.2x to 0.4x the bet for four matching symbols, while the same number of ghosts awards payouts from 0.8x to 2x the triggering stake. You’ll also encounter Wilds and Scatters, each with its own role, while the reaction system follows all wins. More on that later.
Betting starts at $0.10 and goes up to $10 per spin. Volatility is high, or as Big Time Gaming describes it, ‘very high’, while the RTP is set at 96.54%. The top prize of 47,050x the bet definitely matches the risk, and it’s sure to entice all types of players.

Boo: Features
When it comes to extras offered by Boo, there’s nothing overly spooky. Players can enjoy reactions, Wild symbols, and Free Spins with multipliers. These should provide enough winning opportunities and keep the action going.
Reactions
Reactions jump into play after a win is created. The triggering symbols explode, with new symbols dropping down into empty positions on the grid to replace them. The symbols that can drop down are Wilds, Scatters, and any of the four ghost icons. This can lead to another win, repeating the process. This function allows multiple wins to be made in a single spin, significantly impacting the win potential. We should point out that Scatters aren’t affected by reactions.
Wilds
A multi-coloured ghost symbol is the game’s Wild, appearing only on reels 2, 3, and 4. When it hits, it replaces all regular symbols to help form more wins. During the base game, Wilds can appear with a multiplier of 4x, significantly boosting any potential payouts.
Free Spins
The pumpkin is the slot’s Scatter, and at least three are needed to trigger the Free Spins round and award 12 spins. Once the feature starts, each position will have a multiplier situated below a regular symbol. The best part about the multiplier is that it will stay persistent on the grid until the Free Spins end.
Multipliers also increase whenever there’s a win with ghost or Wild symbols. Their value goes up by one for each retrigger. At the beginning of the round, positions with the triggering Scatters will have more prominent starting multipliers: 2x, 3x, or 4x. The remaining positions all start with 1x.
While Free Spins are active, landing three or more Scatter symbols will add three freebies to the tally, but at the same time, this move will boost the multiplier of the triggering positions by either one, two, or three. We have to point out that multipliers only apply to Wilds and ghost symbols.
