There should be a mode where you get to start off as a single zombie and you control him/her with the arrow keys and then you try to infect people and when you die then you go to a different zombie.
Doctor: OH GOD HE HAS BOILS ON HIS NECK!!! Hand me the scalpel I'm going to have to slice open his jugular! Nurse: But doctor shouldn't we... Dr: GOD DAMN IT WHO'S THE DOCTOR HERE!!! OH NO, HE'S LOSING PRECIOUS PUSS!! IT'S WORSE THAN I THOUGHT!!!
1.)Select Bee 2.) Cover the whole screen in bees 3.) Open a new tab and watch this http://www.youtube.com/watch?v=6QV1RGMLUKE 4.)Marvel at your creation