GR-UK writes: "There is a famous novel by Isaac Asimov entitled Fantastic Voyage, from which was drawn a huge number of screenplays, including Joe Dante's Innerspace. Even The Simpsons made a Halloween episode about it, while Seth McFarlane took inspiration from it to send Stewie Griffin in his father's gonads.
Neither is the world of video games new to this type of narrative. Games like MicroBot or Nucleus enacted the journey into the human body. Even the old Dr. Mario puzzler is a take on the epidemic control.
Nano Assault EX, therefore, is not a very original game. But the idea has been well crafted on the Nintendo 3DS. We control a spaceship that has to clean up some cells infected with bacteria and viruses by zapping them with a laser beam."