During combat, the micromouse must remain within a white rectangle on a matte background; if it leaves the rectangle it must stop immediately. The micromouse must also seek other sources of infra-red modulated light and steer towards the source. If the front impact sensors detect a collision, then the micromouse must back off. The infra-red sensors have the lowest priority, that is, the mouse must seek the source only if there is no conflict with the white floor sensors or if there is no impact detected. The floor sensors have the highest priority; if the edge of the rectangle is found then the mouse must abandon its attack and move so as to regain its position in the arena. The combat final will be between pairs of micromice.

The combat was done mostly by coding and a white line sensor was added to the back of the micromouse to avoid it from leaving the combat arena. The technique and code for the combat can be found n the programming section.