Chapter 3. Game Rules, Strategies and Tips

Red balls move with constant speed on the game field bouncing off walls until colliding with another ball, which causes the speed and direction of both balls to change.

The blue ball can be freely moved inside the field with the mouse.

The blue ball cannot escape the field. If the cursor is moved out, the ball stays on the edge, until the cursor returns.

The score is directly proportional to the time the game has lasted.

Pausing the game subtracts a (cumulative) 5 seconds penalty from the total time.