Robocon (Robotic Contest) is organized by Asia-Pacific Broadcasting Union (ABU), a collection of over 20 countries in the Asia-Pacific Region. Each year, the competition has different topics, and two or more robots must complete the tasks. One robot will have manual control while the others are automatic. To build the robots, contestants, who are supposed to be undergraduate students, must possess rich knowledge in programming, mechanical design, and electronic circuit design. With the 20th anniversary of the ABU ROBOCON, the organizing committee brings the most exciting theme based on the game of "Throwing Arrows" from ancient China.