How to play: Your weapon is either a blaster (at Level 1), a laser (at Level 3) or a Shield (at Level 5). You can switch by pressing space. By the way you get two points if you use the blaster. You can use s to go down, d to go right, a to go left and w to go up. You have to click on the mouse to shoot. If the little star is on a robot, then click the mouse. And you win if you get to level five.
(My dad actually built this game on his computer) In my first test the robots went CrAzY! It's a bit hard to have your fingers hovering over w, a, s, d and space at the same time as the mouse, so I just don't worry about the keys you use to move.