Change all the marbles to the same color.
Jumping a marble changes its color. Every jump reduces the counter by one. When the count reaches zero the marble will be destroyed.

Jumping a marble of the same color will destroy the marble immediately.

When a marble is destroyed you will receive a small bonus but you will receive a larger bonus if the marble survives until the game is won.

When all marbles that are left are the same color, you win.