FAQ ABOUT SUMO- MINI SUMO QUESTION: Can I use bluetooth module on my mini sumo robot and chose tactics? Can I change my battery and tires between rounds? Tires and battery will be exactly the same as previous ones. Article 4: The specification of robot are as follows. Controlling Robot Robots will be autonomous type. It is not allowed remote control except “remote start-stop function” Article 7: Game Principles Before the match is over, all maintenance is prohibited.(however, under supervising of judge, competitors can interfere only in 30 seconds without getting any technical support from outside. They also cannot change anything on robot in this moment) QUESTION: Can we use DIY kit to make robot? You can use electronic kit to make sumo robot/