Knocking Down Acrobats

Evildoers have hatched a nefarious plot. Having pulled a giant from the jaws of a shark, they decided to take the circus and its glory away from the acrobats. To do this, they acquired a cannon, intending to climb into it and launch with a blast, smacking the acrobats with all their might. Aim and set the force of the blow simply by dragging the cursor without pressing the left mouse button, and try to hit the acrobats to proceed to the next level.