Your aim is to guide tadpole to his home and avoid all obstacles on the way. Hold LEFT MOUSE BUTTON to swim up, release the button to swim down. Avoid hitting Rocks, Algae and Waterbugs. Be sure to collect those bubbles, they will save you life many times.
Use the rocket power on your motorcycle to jump ramps and collect in air objects for points. Dont forget that safe landings also count and is much difficult in higher levels!