Trophies
Shoot all the zombies!
You have shoot 20 bullets.
Double Hit
Shoot two or more zombies with single shot.
Renewable energy
Your battery is still alive in the 3rd day.
Double Kill
Kill two or more zombies with single shot.
Zombannihilation
You have killed 20 zombies.
True survivor
You have survived until day 6, David Hasselhoff is proud of you.