Shoot the puck.
If the packs with the same number hit each other, the two packs will merge and evolve into a single pack with double the number.
For example, if a pack of "2" and "2" hits, it will change to one pack of "4".
As an challange for each stage, what number and how many should be hit is displayed.
If you hit according to the task within the time limit, the stage will be cleared.

And when the packs are combined, coins may be generated.
Hit the pack against the coin and collect the coins.
Clear the challenges of each stage and earn coins!