Unlike its counterpart in Reality, the candy bombs only have 12 moves. Hence, they can explode and are not just there to boost your score. Also, the target score is much higher and therefore harder to reach, especially with only 2 short moon struck periods.
The bombs are your main worry to begin with. You will almost certainly need special candies to get rid of them.
Special candies are also key to reaching the target score. Destroying one or more bombs using a colour bomb will give you enough points immediately. In general, create as many special candies as possible. Note that the colour bomb + striped candy combination generally does not give as many points as other colour bomb combinations (even just a colour bomb on its own usually scores more). But watch the moon scale for the colours to pick.