Alakajam 21

You have a cannon at the top of the screen. Pressing the left button will launch a ball. The longer you hold down the button the farther the ball fires. As the ball is pulled by gravity it begins to come back to the cannon.

There are several platforms moving back and forth across the screen. Striking those platforms as the ball is returning will earn you the points that are printed on the outside of the platform. If you gain points you do not lose the ball.

If you either strike a platform when the ball is under the platform or the ball hits nothing you lose the ball.

Using all your balls end the game.