Professor Bubbles Slot | Enjoy Free Spins

Slot Information

RTP: 0%

Provider: SkillOnNet

Volatility: Low

Freespins: No

Jackpots: No

Paylines: 20

Number of Reels: 5

Professor Bubbles Summary

Meet Professor Bubbles in his lab which is the setting for the 2014 SkillOnNet online video slot. Themed on science, the 5-reel 20-payline slot features impressive 3D graphics in vibrant colours and smooth animations. Beakers with bubbling potions in various colours are populating the transparent reels along with the Professor’s diploma and other instruments needed for carrying out experiments in the lab. The biggest attraction of the game is the Experiment Mode during which you can enjoy multiple free spins and increasing multipliers as you advance up the feature’s levels. Initially you are given 5 free games and multipliers can go up to 50x if you are lucky enough.


Play Professor Bubbles Slot game for free, right here on our website (No Download Necessary & No Deposit Needed). Increase or decrease your bet and change the number of lines. When you’re ready, hit the “Spin Button”. Enjoy!


100% up to R500 Match Bonus


100% up to R500 Match Bonus Welcome Bonus


100% up to 100 Mega Spins

How to Play

The Professor Bubbles slot uses a standard set of 5 reels and 20 fixed paylines. All you have to do prior to setting the reels in motion is to adjust your bet by choosing the number of coins and their value. Up to 3 coins can be wagered per line and the coin denomination varies between R0.10 and R30. Choose your bet between R2 and R1,800 and push the Spin button. You can also opt for up to 1,000 automatic spins and set the amount of coins per line at the maximum level by pushing the Bet Max button. The three tubes symbol is the most lucrative one. Besides, the microscope, molecules and the hourglass are high-value symbols. The beakers, books and the diploma deliver low value payouts.

Special Features

Wild is portrayed as Professor Bubbles himself. He will replace all missing regular symbols to help you complete winning combinations. Beakers stand for Scatters and unlock the Experiment Mode. As soon as the mode is triggered, Professor turns into a frog and during the initial 5 free games he multiplies all the payouts from the combinations in which is included. If you manage to enter the level 2, Frog Wild acts as a 10x multiplier. As you progress through the bonus game you can benefit from multipliers going up to 50x.


When compared to other online video slots from the SkillOnNet kitchen, Professor Bubbles may seem a bit mediocre in terms of bonus features. It offers only one bonus game, but you will love it for its impressive graphics and cartoonish animation as well as for the weird main character who will entertain you along the way. Watch the experiment go wrong and mutate our new friend into a frog and your bankroll might get pretty high. The game is available across all devices in instant-play mode, so give it a try and enjoy the gameplay. Our rating: 82/100