A type of hazard exclusive to the Classrooms (and Waking floors because they are classrooms as well). It is a construction made from copper wire with a moderately charred floor around it that indicates its area of effect. Periodically the antenna emits 3 discharges in quick succession, damaging Cordy if she is hit. Shortly before the attack starts, a concentrated electricity will be seen at the antenna's top. Antennas are always active, even if there are no enemies in the room. Antennas can be destroyed with prop-breaking attacks (The charred floor will also disappear with it).