Microsurgeon is one of the first published video games related to health or health education. The player must guide a tiny medical device, the Robot Probe, throughout a patient's body to treat the ailments affecting various organs, such as bacterial infections,
brain tumors,
cholesterol blockages in arteries, and
tapeworms. At the start of the game, the player is presented with the patient's status chart, which shows information on each individual organ as well as an overall condition, ranging from "Good" to "Terminal". The Robot Probe is equipped with three different treatments:
ultrasonic rays,
antibiotics, and
aspirin. The treatment to be used depends on the ailment; for example,
bacteria only respond to antibiotics, while
viruses can only be temporarily disabled with aspirin. If the Robot Probe moves outside of the patient's blood vessels or
lymphatic system,
phagocytes (roaming white blood cells) will attack it and start to drain its power. Moving the Robot Probe and dispensing treatments also use up power. Any system whose initial status is not "Good" will slowly deteriorate toward "Terminal" until and unless it is brought up to "Good" with appropriate treatment, and cannot be improved after reaching "Terminal". The ultimate goal is to bring the patient's overall status up to "Good" and exit the patient's body through the eye, ear, nose, or mouth before the power runs out. The game ends when the power reaches zero, the player pilots the Robot Probe out of the body, or the overall status reaches "Terminal" due to two or more systems achieving this status. The player's score (represented as the total bill for the surgery) is reported only at the end of the game, and is determined by several factors such as the overall difficulty of the surgery and the patient's final status. ==Release and reception==