I like it, you can stay alive while infected if you keep eating proteins, to prevent dividing. It does get tough, however, when you meet the cell that has developed an immunity to the virus. Nonetheless, I completed the game and all its achievements.
 "Stick Arena: Ballistick"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "Learn to Fly"){kind=icon}
 "Microbe Kombat"){kind=icon}