Gas Guzzlers Extreme, a not-great arcade combat racer from Gamepires, has done what every game does by adding zombies. The Full Metal Zombie DLC puts the undead into the game, thereby pitting weaponized race cars against hordes of slavering zeds. A requisite base defense mode even comes with the new additions. With a dime-a-dozen premise like that, what makes it extreme? Zombie bison, of course! Why settle for just the normal zombified humans, dogs, and assorted boss monsters? Add an undead bison to the mix, and you’ve got something.