The robots must collect fifteen balls of Green, Yellow and Pink(*1),
and free ball which will be given to participants(robots)
at start of game(*2). Then they should(must) recognize color of
each ball and put them into goals.
In the 2nd preliminary stage and finals, the motion(performance), challenging spirit, artistic outlook or behavior, and speed of robots are scored by judges.
Note 1: Balls are made of urethane. Their diameter is 65 to 70mm, weight is 10g to 15g.
Note 2: Yellow official tennis ball.