First and foremost, gameplay is accessible to anyone because you only need to press one key. Although you cannot select a custom key, you can choose from the most often used keys, including arrow buttons, space, enter, and mouse buttons.
The game is about following the rhythm. There are four chapters, each containing ten stages that must be performed in order. But you only have to beat five stages to unlock the next chapter. Each stage contains a song and bubbles to pop as they reach the marker. Because the song is composed of several patterns, you may receive one or more bubbles in rapid succession. Despite this, the overall process is simple and takes little time to achieve the highest possible score.
However, there is one roadblock. If you want to make progress to the next stage, you will have to beat every fifth stage within a chapter in spectacular mode. This is where the challenge lies. The mode features the same song and patterns as casual mode, but you can not see the timing. This requires you to remember the tune or predict when to press the button.
Except for the sounds that indicate a miss or hit, there is no visual cues whether you pressed the button too late or too early. To be fair, there are a few hints. First of all, you must wait for the whole sequence of bubbles to appear on the bar before beginning the beat.
Second, the timing of the first bubble is shown by a dark line on the bar. This can be tricky because a bar has numerous dark lines (they mark the beginning and end of a sequence), but you can figure out which one is the right one by looking at the number of bubbles on the bar and how close the first bubble is to the beginning.
The hard part is that you have to reach a good score to be able to continue. Scoring is very brutal and it’s very easy to ruin it. This can happen with any missed beat because it messes you up so much that you fail the entire sequence. You don’t need the best score, but even a passable score is hard to get. Fortunately, once you pass the fifth stages in spectacular mode, you can play the rest in casual to beat them all.
While spectacular mode provides rewards in the shape of gems, they are not worth it. The main reason is because gems have a mobile phone economy, which means you can purchase a bundle of gems with real money. Gems can then be used to buy a different mascot that sends bubbles, a handful of fires that indicate the point where you have to click a button, and one of four boosters. Except for the one that hits the bubbles automatically for a few seconds, the rest are worthless.