Sorting games are popular and bubbles are one of the main game elements, just like in the Bubble Sort game. The task is to shove the balls into flasks so that each contains balls of only one color. The game has three levels of difficulty and each of them has a hundred sublevels. In fact, you can immediately start with the most difficult mode, but the levels must be completed in turn as they become available. When sorting, there is one strict rule that must not be violated. You cannot transfer the ball to the flask if there is a ball of a different color. Only the same color can put balls in Bubble Sort.