Update3

So I added a Menu Scene that allows you to Start the game and Quit the game.

Also added Instructions on how to move, what buttons to use to shoot bullets, (Shown in the pictures).

There is a way to restart the game and that is to press R. I forgot to add it so in some of the images. 

Added Health Sliders to show each player how their health is doing.

Lastly, I want to point out that the players get smaller every time they get hit. This was an accident but it was so awesome, I didn't want to change that and maybe I was also too lazy to want to figure it out.