Different holidays are often used as the theme for online slots, and Realtime Gaming's Bubble Bubble slot is a good example of that. It uses a bit of a Halloween theme that stars Winni the Witch as the main character. The graphics in this game are pretty good, and though they aren't of the 3D style that some players have gotten used to, they're definition of a high enough quality to be considered a part of the modern era of games. Overall, this is a game you can play all through the year despite its theme just because it has such solid gameplay.
Basic Format and Betting
The format here is five reels and three rows, which is pretty much the standard for video slots. However, this game also uses 50 paylines, a layout that isn't used all that often, and the bet sizing scenario is a little atypical. Instead of having coin sizes that you choose from and a different number of coins on each payline, this game just allows you to just choose your total bet size. It starts with bets of just $0.50 and go all the way up to $12.50 apiece. This corresponds to coin sizes between $0.01 and $0.25 each.
Winni the Witch is the wild symbol in this game. On the middle reel, you'll see Winni show up and cover the entire reel. What's also pretty cool about this symbol is that it gives you a 3x multiplier on any payouts that it's a part of. This is a key part of the gameplay, even in the regular stage of the game, because of the value the symbol gives. Additionally, Winni counts as a single scatter symbol, and her multiplier extends to the scatters as well.
The top regular symbols are the black cat and the black raven. Each of these pay 1,000x for five of a kind, which is boosted to 3,000x if it uses a wild Winni symbol. Realtime Gaming has done something pretty cool here by offering players two different top jackpot symbols.
The frog, pumpkin and spellbook symbols all pay 333x for five of a kind, and that jumps to 999x for five if one of those is the Winni symbol. Something to note here is that the black cat, black raven, frog, pumpkin and spellbook all pay for just two of a kind as well, so the hit-rate is pretty significant in this game.
The low-end symbols include the crystal ball, potion and vials of ingredients for spells. Each of these pay 150x for five, and those jump to 450x if Winni is used. Additionally, the candles, skull and spider all pay 99x for five, and that's increased to 297x with the wild multiplier. There are a whole lot of symbols in this game, and that means lots of different winning combinations.
Scatters and Features
The scatters are the cauldron, and the wild multiplier Winni symbol counts as one on the reels. If you use her as one of your scatters, the win is multiplied by three as is the case with the rest of the symbols in this game. It's worth pointing out that this scatter pays left-to-right only, but they don't have to line up on a specific payline. Five scatters gets you 33 times your total bet, and that's boosted to 99x if Winni is used.
There are three features available in this game if you hit three or more of the scattered cauldron symbol. The great ghosts feature gives you 20 free spins with extra wilds added to the reels (without the multiplier). The wild witches feature gives nine free spins, and when the wild Winni shows up, she casts a spell on one or two other reels, turning them completely wild as well. Finally, there's the bewitched feature that gives you 7 free spins with the wild multiplier covering the entire center reel during all of the free spins.
Overall, Realtime Gaming has done a very good job with the Bubble Bubble slot. This is a game that offers lots of payouts at many different levels, and it has an above-average visual presentation as well. If you're the kind of player who likes feature-packed games with a high hit-rate, then this is a title that you'll get a lot of fun out of.