you have two players one as the Steve and a as the zombie the zombie use the arrow keys to move and space to shoot and Steve you use the w s a d key to move and e to shoot you will see who has won in three minutes you got some more shooting items but there are the same thing maybe in the future they could do something but press 1 2 3 4 5 6 7 8 9 and then you will have a whole lot of different items to shoot at :D
i would say thanks to chippy9 with helping me with some of the bits in this game i got this idea from minecraft :)