The Green Starbattler on the left uses W,A to move, and D to shoot. The Purple Starbattler on the right uses Up Arrow, Down Arrow to move, and Left Arrow to shoot. The HP bars are on the top left and right - they say in the names of them, who the bar is for.
This project was inspired by my other game I made at school, but another player instead of enemies, and shooting. At first, I attempted to recreate my school version - as it broke, but instead remembered that my friend is coming round, so I turned it into a 2 - player battle game.
