The robot base contains our selected circuit board and it can do some simple movements. It can insert a combat module to have different functions such as using a sword to attack or using a shield to defense. Players can develop different combat modules on their own, based on the robot base and circuit board designed and provided by us. They can also create their own new play styles and rules. They can even insert a tool module such as a camera or robotic arms to become a multi-functional robot.