Cannons have been actively used in battles since the twelfth century and since then their design has undergone changes. Modern artillery no longer fires cannonballs, but uses shells. However, in Boulder Blast you will be using a primitive cannon with a large wide barrel that shoots cannonballs. The task is to destroy multi-colored boulders that fall from above. Moreover, each stone has a numerical value, which means it will not be possible to destroy it with one shot. Large stones, when hit, scatter into smaller ones, which also need to be deftly and accurately destroyed so that they do not fall down into Boulder Blast.