Crazy Zombie 10.0 offers seven unlockable modes, each providing a different way to test your skills:

: When possible, position your characters on higher terrain or platforms; zombies are often more vulnerable to top-down attacks.

Decades later. A child finds Voss's tablet in the ruins. It flickers on. A final, pre-recorded message from Voss—his voice before he cut it out—plays: "If you're watching this, the silence worked. Now… don't make a sound."