Bullshark Games brings explosive cluster pays to the table — dual Power Bombs, Bomb Frenzy progressive multipliers, Medium volatility, and a 12,000x max win. Releasing September 30, 2026.
18+ | T&Cs Apply | Gamble Responsibly
Boombear Bros earns an 8 out of 10 from SlotArk. Bullshark Games delivers a well-rounded cluster pays experience with genuine mechanical depth — dual fire and ice Power Bombs add a dynamic layer to the base game, the two-tier free spins system rewards an extra 2 spins for landing a fourth scatter, and the Bomb Frenzy progressive multiplier mechanic is the engine that drives the 12,000x ceiling. A 27.3% hit frequency keeps the base game engaging between bonuses, and the 96.32% full-RTP configuration makes the number work. Feature Buy options give high-variance players direct access to the bonus without grinding the base game.
18+ | T&Cs Apply | Gamble Responsibly
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18+ | T&Cs Apply | Gamble Responsibly
18+ | T&Cs Apply | Gamble Responsibly
Boombear Bros is an upcoming release from Bullshark Games, tentatively scheduled to launch September 30, 2026. The studio builds its catalogue around a playful, cartoon-driven aesthetic, and Boombear Bros fits that mould squarely — a colourful cast of bomb-throwing bear characters brought to life across a 6×6 Cluster Pays grid. Where Bullshark's Joker Never Retires leaned on the classic joker symbol as its centrepiece, Boombear Bros leans into chaos: bombs detonating, cells transforming, and dual elemental mechanics creating a more layered base game than most cluster pays titles offer.
Boombear Bros — base game.
The game plays on a 6×6 Cluster Pays grid with Medium volatility, a 12,000x max win, and two RTP configurations: 96.32% and 94.36%. The bet range runs from $0.10 to $75, and the hit frequency sits at 27.3% — roughly one win every 3.7 spins. The free spins feature triggers on 3 scatters (10 spins, Bombs Away) or 4 scatters (12 spins, Maximum Blast), with Feature Buy options — BonusHunt, Short Fuse, and direct purchase — providing immediate bonus access for players who don't want to grind the base game.
The mechanical hook that separates Boombear Bros from a generic cluster pays title is the dual Power Bomb system. Two distinct bomb types — fire and ice — interact with the grid differently, with fire bombs creating cell multipliers and ice bombs transforming symbols. When Bomb Frenzy triggers during the free spins feature, progressive multipliers begin stacking across the grid, which is where the 12,000x ceiling becomes reachable. Bullshark Games has shown with Joker Never Retires that it can design around a core mechanic without overcomplicating the format, and Boombear Bros takes that approach into more dynamic territory.
Two distinct bomb types land across the 6×6 grid during base game and free spins. Fire bombs create cell multipliers that persist and amplify cluster wins. Ice bombs transform adjacent symbols, reshaping the grid to improve clustering potential. Both types interact with each other when they appear simultaneously.
Wins pay for clusters of 5 or more matching symbols connected anywhere on the 6×6 grid, horizontally, vertically, or diagonally. Larger clusters pay proportionally more, and multiple clusters of the same symbol type can combine into a single payout if they are connected.
Landing 3 scatter symbols triggers Bombs Away (10 free spins). Landing 4 scatters triggers the Superior Maximum Blast (12 free spins). Both modes feature enhanced Power Bomb frequency and carry over any active cell multipliers from the base game.
Bomb Frenzy activates during free spins when multiple bombs detonate simultaneously, triggering a progressive multiplier chain that stacks across consecutive wins — this is the primary route to the 12,000x max win. Feature Buy options include BonusHunt (increased bomb frequency), Short Fuse (direct pre-loaded bonus access), and a standard direct purchase.
The free spins feature is where Boombear Bros earns its Medium-volatility stripes. Triggered by 3 scatters (Bombs Away, 10 spins) or 4 scatters (Maximum Blast, 12 spins), the bonus opens with enhanced Power Bomb frequency — more bombs landing per spin means more cell multipliers from fire bombs and more symbol transformations from ice bombs. Cell multipliers that were active in the base game carry over into the bonus and continue to grow.
Bomb Frenzy is the defining moment of the feature: when multiple bombs detonate in the same spin, a progressive multiplier chain activates. Each subsequent bomb detonation within the same free spins session increases the multiplier, and that multiplier applies to every win until the bonus ends or resets. The interplay between bomb type, cell multiplier growth, and Bomb Frenzy escalation creates a genuine escalation structure where later spins in the bonus are proportionally more valuable than earlier ones — a design choice that maintains tension throughout the feature rather than front-loading the payout.
Boombear Bros ships with two RTP configurations. The spread of 1.96 percentage points between the two tiers is notable — the full-RTP version at 96.32% is a competitive number for a Medium volatility cluster pays title, but the reduced tier at 94.36% carries a house edge of over 5.6%, which meaningfully erodes the expected value over a session.
| RTP Variant | House Edge | Verdict |
|---|---|---|
| 96.32% (Full) | 3.68% | Full RTP — play here |
| 94.36% (Reduced) | 5.64% | Avoid if possible |
Bullshark Games titles are often available on crypto casinos including Stake and Rainbet, which typically carry the full-RTP configuration. Always verify in the game info panel before playing for real money, as the active tier is operator-controlled.
Boombear Bros — Bomb Frenzy free spins.
