Mystery - Normal Zombies

Description
The Mystery is a zombie encountered on wave 14 of Normal Mode that has a unique ability to spawn other zombies when killed. It has 20 health, average speed, and is quite average in difficulty

Appearance
The Mystery has transparent blue skin, and neon blue chains, with a neon blue question mark stretching through it's torso.

Strategy
The strategy to defeat Mystery is very simple. Use splash damage towers to clean up the extra zombies spawned, and use Medium DPS towers to defeat them.

Ability
When the Mystery dies, It will be able to spawn one of the following:


 * Normal
 * Icy
 * Noob
 * Indentured Boss
 * Shadow