Health is 100. WASD to move (w is up, s is down, d is right and a is left.) Press space to shoot (make sure the aim thing is on the zombie.) Press 2 to switch page to page 2 and press 1 to switch page to page 1
If health is in - then don't worry, it's a visual gltich. Credits to 2010 or 2011 Dani for the idea Credits to me for coding Credits to Drop The Bassline for the music if you haven't heard of Dani check him out on yt and put karlson on your wish list on steam.