Bubble Bubble 2
- RTP
- 95.00%
- Volatility
- HIGH
- Max win
- 12,500×
- Hit freq
- -
- Grid
- -
- Bet
- €0.01 - €0.25
- Released
- 2017-06-15
A playable demo is not available in your region.
Our take
RTG's Bubble Bubble 2 is a Halloween-themed, high-volatility slot with expanding wild symbols and 95.00% RTP across 50 paylines.
The slot employs 50 fixed paylines and a 95.00% RTP, placing it at the lower end of the contemporary range but still within acceptable parameters for high-volatility titles. The expanding wild symbol is the mechanical centrepiece: when a witch wild lands, it expands vertically or horizontally to fill reel segments, increasing win potential on that spin. The Halloween theme is executed with sex appeal and humour—symbols include a witch character, potion bottles, candles, and supernatural fauna (owls, bats, rats). The tone recalls Buffy the Vampire Slayer meets Sabrina rather than sinister horror, positioning it as accessible entertainment. Free spins are triggered by scatter symbols and extend the feature with additional wild-expansion opportunities. The graphics are noted as excellent across reviews, with smooth animations enhancing the spell-casting aesthetic.
Pros
- Expanding wild mechanic creates clustered wins and escalating payoff chains
- Halloween theme executed with visual polish and comedic tone rather than heavy horror
- 50-payline structure generates more frequent base game wins than lower-payline competitors
Cons
- 95.00% RTP is lower than contemporary slots, reducing mathematical return
- High volatility paired with lower RTP creates longer spells between substantial wins
- Expanding wild mechanic, whilst effective, is not novel or differentiated
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 12,500x the stake
Gameplay video
Videos open in-place on click. Some uploaders disable embedded playback - those will redirect to YouTube.
FAQ
- How does the expanding wild symbol function?
- When a witch wild symbol lands on any reel, it expands to fill that entire reel column or adjacent positions, converting a single winning combination into multiple payline hits and substantially increasing the spin's payout.
- Is the Halloween theme suitable for non-seasonal play?
- Yes. Whilst Halloween-aligned, the theme's light-hearted, comedic tone keeps it fresh year-round. The slot doesn't rely on seasonal marketing hooks.
- How frequent are free spins in Bubble Bubble 2?
- Free spins are triggered by scatter symbols. Frequency depends on volatility; higher volatility means fewer triggers, but each feature delivers greater payoff when it arrives.
