. . . . "Photon beam"@en . . . "Photon beam"@en . . "In standard K9 models, a metal tube came out of a hole at the front of the robot's head and it fired the beam. However, in the case of K9 Mark I's later incarnations, such as K9 Mark 2, it was simply fired out of the hole. Several smaller holes inside also lit when the weapon was charged. (TV: Mind Snap) For Mark II (TV: The Invasion of Time, The Ribos Operation) and early instances of Mark III, (TV: A Girl's Best Friend) the beam was red, although in K9 Mark I and III's later life, (TV: School Reunion) along with K9 Mark IV (TV: The Gift) and K9 Mark I's later incarnations, (TV: Liberation) the beam was a more orange colour."@en . "In standard K9 models, a metal tube came out of a hole at the front of the robot's head and it fired the beam. However, in the case of K9 Mark I's later incarnations, such as K9 Mark 2, it was simply fired out of the hole. Several smaller holes inside also lit when the weapon was charged. (TV: Mind Snap) For Mark II (TV: The Invasion of Time, The Ribos Operation) and early instances of Mark III, (TV: A Girl's Best Friend) the beam was red, although in K9 Mark I and III's later life, (TV: School Reunion) along with K9 Mark IV (TV: The Gift) and K9 Mark I's later incarnations, (TV: Liberation) the beam was a more orange colour."@en . "Energy weapon"@en . .