In REBUILT, two competing alliances made up of three teams are invited to score fuel and climb to the top of a ladder before time runs out. During the first 15 seconds of the match, robots are autonomous. Robots leave their starting zone, score fuel - 5.91 in. diameter foam balls in the hub: an open deposit to shoot fuel into. During the remaining 2 minutes and 15 seconds, drivers control their robots. Robots collect fuel from human players at their outposts and score them in the hub. Each alliance has a hub; every twenty seconds, the hub will turn off on one side and switch on for the other. Points are only able to be scored during the time at which the hub is on. As time runs out, robots prepare to climb their towers or continue scoring until time runs out. The alliance that earns the most points wins the match!