Knife-O-Rade is a custom Perk-a-Cola in the non-canonical Nazi Zombies storyline Hellbound. Knife-O-Rade increases the amount of damage done by knife attacks, decreases the anount of time it takes to melee, and increases the knifing radius. These effects apply to the standard melee knife, Ballistic Knife, Sickle, and Bowie Knife. Knife-O-Rade costs 1000 points. The color of this machine is black. This Perk tastes like metal.