Z-Genocider 2: Genocide Harder

Z-Genocider 2: Genocide Harder is an achievement in Dead Rising 2 unlocked by killing 53,596 zombies in one playthrough.

How to Unlock

 * Get the Driving Magazine from the BBQ Shack in Americana Casino and use the SUV multiple times until the achievement is unlocked.
 * Use a Slicecycle.