The goal of the game is to repel as many flying 3D objects as possible.
For the beaten back object you are awarded a point.
Points are not awarded if the object is beaten to the right or left.
For a missed object, the opponent is awarded a point.
To pass a level, the number of objects knocked back must be greater than the number of skipped objects and the remaining ones.
You can increase the number, size and weight of your balls, as well as the interval of appearance of new objects.
Each new level the number of objects, their size and speed of flight can change, also obstacles appears on the field.