Response, or interactive medium in an art form, is a medium itself that comes with its own principles and laws. As is mentioned in Responsive Environment, “the distinguishing aspect of the medium is, of course, it responds to the viewer in an interesting way” (Krueger 430). Response as a medium is all about the outputs of an environment triggered by the real-time human-machine interaction. The inputs from participants, or the triggers could be the operations a player performs on the program, or just the physical attributes performed by the player, like voice pitch, posture and so on. The response to the physical interactions of participants relies heavily on the sensitivity of the sensors, as is implied by Krueger, “the only aesthetic concern is the quality of the interaction”.