Developed by Synergistic Software, Inc. and published by Activision, Inc., Laser Surgeon: The Microscopic Mission is a educational, simulation game revolving around real-time. It was published in 1987.
In this difficult game that could make you go blind, you're shrunk to the size of a cell and injected into a patient's body (hrm... where have we heard that before?) to perform surgeries on different body parts. The not-so-intuitive controls takes some getting used to (using joystick is much better), and the graphics are perhaps not the best. Still, it turns a (cliche?) concept into hours of gameplay. Not as good as the classic Life & Death games, but isn't bad.