Interesting. I think a start button that then sets the player in motion on a random vector would make the game more challenging. At the moment you can not do anything and rack up the points. But once you start moving, it's a fun challenge to dodge the rocks. I also love the little astronaut. One little extra thing that might make the game pop is having the ships rotate to always look at the astronaut to give it more a sense that they're mounting a rescue mission. Sound effects are great.