I was not aware of the existence of Hebocon, but then just today I found the video shown below. Hebocon is a robot competition in which the important thing is not to have the most sophisticated robot as in the Robocup, what matters is the originality and above all the crappiness of the robots. In fact “Hebo” ヘボ, within the name of the competition “Hebocon”, means “Crappy”.
The rules are so simple that even kids younger than 10 years old participate.