The numbers from 3 to 9 will drop randomly.
After 3 minutes, the numbers 11 and 12 will also appear.
If you align the same numbers by the number, the numbers will disappear and you will get points.
The number that was on top of the disappeared number falls down, and when the number disappears, it becomes a combo, and the score of the second combo is doubled.
After the 3rd combo, the score will be multiplied by the number of combos.