Counter Cola is a custom Perk-a-Cola in the non-canonical Nazi Zombies storyline Hellbound. Counter Cola costs 1000 points. When purchased, a small counter is added to the top of the player's screen which tells the amount of zombies that will need to be killed in order to advance to the next round. This counter is green and black, and looks digital. The machine that holds the bottles for this Perk is digital green and black, and square. The Perk tastes like Sprite.