Customize your zombie and start the carnage. Guide him around the streets to eat human brains as they run panicked and confused up and down the street. Attack armed people from behind before they see you, or jump to avoid them as you do with cars. Fresh brains are good for your zombie. He can spit acid balls or upgrade him.
Use the arrow keys to move. Press X to jump. Press Spacebar to eat. Press Z to spit acid.