The Soccer Robots

... robots built for the RoboCup Junior Competitions

The RoboCup Junior Competitions

Four soccer robots that were built for the RoboCup Junior (link to Wikipedia)

I built these with two of my classmates back in high school. They are all custom-made by hand, everything from mechanical components to electronics. They were programmed in MCS-51 assembler. It was before "Arduino" was a thing.