Nizulo's Dean Vella writes: "Zombies are by far the most popular enemies you'll find in video games today. They have literally infected the gaming industry. While they are an overused asset, zombies are still loved by millions around the world. People can't seem to get enough of these bastards. To us gamers, zombie killing has become second nature. The undead come in various shapes and sizes, some are slow and sluggish, while others are agile and quick."