up and down arrows to move left and right arrows to switch weapons space bar to shoot. On the first map you only have the revolver to kill the zombie but on the second you gain the shot gun and on the third map you have all the weapons If you chose to play on the infinite map then you will have all the weapons and the zombies hp will be in between 5 -12. have fun :)
All of the work is mine and if you want to use it ask me and I will probably will say yes (this applies for remix's)