- Stunning design and immersive gameplay
- Fun bonus features
- Smooth gameplay and great betting range
- Low maximum win
- Original Bubble Bubble pointless to play after the sequel got released
It’s no miracle that Bubble Bubble online slot by RTG has accumulated immense attention from players all around the globe. This is one of the online games that has been designed to look more like a thriller and less like a slot machine.
It is amongst the pokies that have above average RTP, standing 96.30%, and a very high volatility. The latter means that you might want to hold back on your bet levels a bit, as your bankroll could fluctuate up and down fast. Bubble Bubble is a five reels and three rows slot, operating on 50 fixed paylines. Bet levels range from $50 – $12.50 per spin, along the lines of most RealTime Gaming pokies. Find out more on this slot and its sequel, Bubble Bubble 2, from our full review.
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Theme & Design
Bubble Bubble is set within a graveyard, with the reels almost merging with the creepy background. The game grid is solid black colour, which fits perfectly with the surrounds; namely, spider webs, mushrooms, skeletons, and the entrance of the graveyard. With 3D immersive graphics and the deep, inviting sound effects, Bubble Bubble is a truly witch-themed slot.
The game symbols are all fitting with the theme, whereby Winni the Witch, spiders, a frog, cuddles etc. are thrown into action as the reels spin. Even the controls are themed accordingly, as they are merged with the background. All symbols carry distinct values in Bubble Bubble, which are as follows.
| Bubble Bubble Symbols | 2 Symbols on a Payline | 3 Symbols on a Payline | 4 Symbols on a Payline | 5 Symbols on a Payline |
| Candles, Skeleton, Spider | – | 5 | 20 | 99 |
| Potion, Hob, Crystal Ball | – | 5 | 33 | 150 |
| Book of Spells, Pumpkin | 3 | 6 | 60 | 333 |
| Frog | 3 | 12 | 150 | 333 |
| Crow | 3 | 33 | 333 | 1000 |
| Cat | 6 | 33 | 333 | 1000 |
| Scatter (Cauldron) | 2 | 3 | 6 | 33 |
How to Play Bubble Bubble Slot
After you get the feel of the game gird of Bubble Bubble slots, then things are not hard to manage.
- First, you must set the bet level by using the two arrows, located in the bottom-centre of the screen.
- Then, you can spin the reels using the spider web control. Speed adjustments and autoplay option are also amongst the game features.
- After the short animation of the magical reels, the symbols will fix on the reels. Matching 2 high paying symbols, or 3 low paying symbols, on an active payline will result in a win.
Keep in mind that only win is paid from a single payline, while distinct wins from various paylines are summed up and automatically added to your bankroll.
Bubble Bubble Free Spins & Bonus Features
This slot machine does not just offer numerous free games but also the signature Bubble Bubble wild symbol, represented by Winni the Witch. Whenever she lands on the reels, she will expand to cover the whole reel, and then multiplies all wins by 3. The wild symbol of Bubble Bubble even substitutes for scatter symbols, which triggers one of the below features, as long as a minimum of three land on the reels.
Great Ghosts Feature
During this bonus, players will be awarded 20 free spins. As these play out, 1 – 9 ghosts can appear on the reels, turning symbols into wild ghosts. These substitute for all other symbols, and on top of this, the bonus feature can be re-triggered during the 20 free games.
Wild Witches Feature
This bonus feature will unlock 9 free spins, during which the Winni the Witch turns 1 – 2 other reels into expanding wilds. This bonus game can also be re-triggered as it plays out.
Besides the above features, as this bonus feature plays out, the Win Win feature is also operating – awarding spins that do not win a high enough value with a standard prize ranging from 5 – 100x the player’s stake. This value is calculated at the end of the bonus game.
Bewitched Feature
If you trigger this bonus feature, you will win 9 free games, with Winni the Witch remaining on the middle reel until the feature ends. Players can re-trigger the bewitched feature, by landing additional scatters on the reels.
Stats & Mechanics of this Slots Game
Aren’t the bonuses of Bubble Bubble slot fascinating? Well, they are but do not get carried away. This slot is a very volatiline one, which means that wins might take a while to come. On the long run, you will probably be fine, as the return to player rate is very high, at 96.30%.
Watch out for the wild symbols, as these are the key to the maximum win of 3,000x your bet level.
| Bubble Bubble | Statistics |
| Return to Player (RTP) | 96.30% |
| Bet Levels | $0.50 – $12.50 |
| Volatility/Variance | Very High |
| In-Game Bonuses | Wild Symbols, Expanding Wilds, 3x multiplier, Scatters, Wild Witches Feature, Great Ghosts Feature, Bewitched Feature, Win Win Feature. |
| Gameplay | 5 reels, 3 rows, and 50 fixed paylines |
| Maximum Win | 3,000x |
| Jackpot? | No |
| Software Provider | RealTime Gaming, released in 2017 |
| Demo Play Available? | Yes, on all RTG casinos |
| Theme | Witch, Magic, Dark Magic, Cartoon. |
Bubble Bubble 2 Slots
As you might have guessed, Bubble Bubble has been very popular in Australia and the US, and RTG did not take long to release the sequel to the original game. In terms of statistics and gameplay, both Bubble Bubble slots look identical (see more below). When it comes to graphics, however, the sequel is much more colourful and less creepy, while still maintain the original theme.
The twist of this slot is that Wanda joins Winni, operating in exactly the same way. Nonetheless, as a result players can bag 9x wins, amount to a jackpot of 9,000x their bet – which is considerably higher when compared to the original game.
Rest features operate in the exact same way, but the implementation of two expanding wilds is a great addition to this RTG sequel.
| Bubble Bubble 2 | Statistics |
| Return to Player (RTP) | 96.30% |
| Bet Levels | $0.50 – $12.50 |
| Volatility/Variance | Very High |
| In-Game Bonuses | 2x Wild Symbols, 2x Expanding Wilds, 3 – 9x multiplier, Scatters, Wild Witches Feature, Great Ghosts Feature, Bewitched Feature, Win Win Feature. |
| Gameplay | 5 reels, 3 rows, and 50 fixed paylines |
| Maximum Win | 9,000x |
| Jackpot? | No |
| Software Provider | RealTime Gaming, released in 2017 |
| Demo Play Available? | Yes, on all RTG casinos |
| Theme | Witch, Magic, Dark Magic, Cartoon. |
Our Verdict
There should not be a question as to whether Bubble Bubble slots are worth playing. They are spectacular games in terms of design, they provide access to multiple bonus features that keep players entertained, and the theme is very intriguing, setting the tone in a similar fashion to a movie. RTG has crafted both Bubble Bubble titles with an intriguing gameplay, a great range of bet levels and decent mechanics.
Probably the only aspect that we did not like about Bubble Bubble is that the 3,000x maximum win is rather low for a high variance slot game. Nonetheless, the sequel offers three times that amount, so we would suggest you to try that one instead.
Bubble Bubble FAQs
Bubble Bubble is very high volatility slot game, which is an indicator that it will not pay out players too often. Nevertheless, when payouts land, they are likely to be lucrative.
No, this is not amongst the RTG jack pot games, offering a rather low maximum win of 3,000x the original bet.
Bubble Bubble is an above average RTP slot, rated at 96.30%. This means that the house edge on this game is 3.70%, which is great for a slot game. Nevertheless, some platforms report this game as 95% RTP one, so this should be something to remember as you play.
Aussie punters should not worry about accessing Bubble Bubble slots, as we feature the top casino sites and real money apps powered exclusively by RTG. Don’t miss out.
As most slot releases after 2010, Bubble Bubble slots are two perfectly optimized casino games instantly accessible through all Blackberry & Linux smartphones, tablets and laptops. Further, software systems are also supported, like iOS and Android!
- About the Author
- Affiliate Disclosure
Michael has reviewed and verified all information on this page. Having worked in the iGaming industry for over 8 years, he is the most capable person to help you navigate online casinos, pokies, and the Australian gambling landscape.
