Dr Bubble Halloween is a classic bubble shooting game in which you have to form groups of 3 or more Microbes to clear the board entirely. In the challenge mode, you will be faced with increasingly difficult levels as you progress. You will try to strategically shoot the microbes at the right spot and create the right combinations to clear any given level and move on to the next level for more bubble shooting. In the survival mode, you will challenge yourself to beat your bubble shooting record