It is a free zombie game to fight off the approaching zombies by using various weapons.

Zombies attack one after another.
You can use pistols, assault rifles, shotguns, and other weapons to fight off the zombies.
Fight off the zombies.
Some zombies will attack you by throwing axes and knives.
Axes and knives thrown by zombies can be destroyed with guns.
If you destroy the item boxes that appear from time to time, the ammunition will be replenished.
Zombies do not fall easily.
Be careful with the number of ammunition you have left and shoot the zombies.
When you kill more than a certain number of zombies, the stage is cleared.
Defeat all the zombies and aim to clear all 16 stages!