Lightning Bolt

The Lightning Bolt is a power-up available only in Call of the Dead. It is obtained by completing the Original Characters Trapped easter egg. The power-up looks like the normal Death Machine but will grant the player a Wunderwaffe DG-2 and the Demonic Announcer will say "Lightning is POWER!" instead of "Death Machine". The Wunderwaffe DG-2 will last until the player runs out of ammo, and cannot be pack-a-punched. Max Ammo will replenish its ammo. Picking up a Death Machine power-up will cause the Wunderwaffe DG-2 to disappear and be replaced by the Death Machine. Being downed will also get rid of the DG-2.

Trivia

 * Upon completion of the easter egg, the Lightning Bolt power-up replaces the Death Machine George Romero drops when he is killed. This will affect every game the player plays from then on, with no additional completions of the easter egg necessary.
 * The Lightning Bolt and the Death Machine are the only power-ups in zombies that do not affect the entire team directly. Only the person that grabs the Lightning Bolt power-up will receive the Wunderwaffe DG-2 and not the entire team.
 * Strangely enough, the Wunderwaffe DG-2 lost power, because it's not insta-kill for all zombies (George Romero)
 * It is also possible the the Wunderwaffe DG-2 still has infinite damage but George Romero is a new kind of zombie (somewhat similar to the pentagon theif). This may explain the lack of effect from nukes and Insta-Kill.