Fast paced game... start your own super virus and try to kill the entire population before someone creates a cure. Strengthen its resistance to antibiotics and make its side effects lethal.
Check out "Plague Inc."
https://play.google.com/store/apps/details?id=com.miniclip.plagueinc
Check out "Plague Inc."
https://play.google.com/store/apps/details?id=com.miniclip.plagueinc