The good outweighs the bad in this game. I just wish there weren't so many bad things. The bad things were that it does not have great graphics and it's basically the same thing over and over. Then again, that also made it addictive. It's nice to have a simple game that just goes on forever. I'm not in much danger of being hit by the asteroids.
I honestly left myself up there and I don't even know where I receive damage. I think the sound effects are pretty good. I had no idea there was so much music in this. I think there's a glitch where you can't move out for awhile. I'm glad I wasn't defending Earth in this.