a= left d= right w= thrust s= shoot You have 200 bullets to hit as many targets as you can. There is no time limit. If you hit a target, a new target is made. If you go over 30 targets, then targets are quickly and randomly removed to stop the game seizing up due to having too many objects.
Challenges: Try to modify this game so that the spaceship must avoid being hit. Try to make it so that hit targets spawn two smaller targets, and if these are hit, they are removed. Try to have targets being fed into the game at random..... have fun!