Cannon shot

Physical puzzle.
Shoot. Complete difficult levels.
Play fast, to get all stars.
Complete level can be challenge, be the fastest is even more difficult.

Rules of the game:
Your task is to fill all the cans at the level with cannonballs. Each can must contain at least one cannonball.
To do this, shoot from the cannon.
The greater the distance between the cannon and the point of contact, the stronger the shot.

Controls:
PC: Mouse.
Smartphones: Touch Control.