This game was a blast! It thought i wasn't going to win there for a minute (that last level with the BIG black hole is really great). I've played a bunch of submissions this week and this one was at the top for fun value. Great backgrounds, appropriate audio, on theme. I think the only thing it was missing was a powerup! Rapid fire, a AoE missile/bomb, or a stead stream laser or something.
Really great work though, very fun!