Zombies are always hungry. They need brains in order to sustain enough energy to get around very well. If you don't get enough brains to eat, you will die. I realize Zombies are already dead, but you will die again, so make sure you eat enough people. This is a platformer, so you'll need to get familiar with the controls. The controls are pretty straightforward: Use the arrows keys for movement. You can jump using either the 'X' key or the 'Up' arrow. To feed, press the space bar or the 'C' key. Go ahead, get out there and feed on those innocent people. They are tasty!