Arrow keys to move. 'a' to shoot. You get points for dodging and also for shooting the asteroids. -Touch mode not fully tested. High score tables- https://scratch.mit.edu/cloudmonitor/115915557/ Copy and paste link or just click on 'Cloud Data' below the project. 1 point for dodging the asteroid and two points for shooting them.
All by me. Now with a highscore system. 1 hour after launch- Now added touchscreen. Need to test. Backdrop is drawn with pen.