New technological innovation in the medical field has led to an amazing discovery! A new type of doctors are now being trained so that they may actually be shrunk, and placed inside of an ill persons body. These soldier doctors must then hunt through the various organ cavities for the raging viruses that wish to consume you just as much as the person you are inside! But in order to destroy them, you've been given a very very large gun. And if that won't do the job, then what will? Just point and shoot while the arrow keys maneuver you.