Brother Eye is fought as the final boss of the Batcave: Inner Sanctum alert and raid. The fight consists of two distinct phases. During the first phase, Brother Eye is untargetable, but will continuously damage any players in laser fields on the floor, while summoning hordes of drones. Once in a while he would use a special attack. After taking down all five terminals on the wall with Batman's help, Brother Eye detaches from the wall and attacks on the battlefield. This phase can be easy or very hard. In this state Brother Eye has two attacks.