The game itself seems like it would be fun, though a bit repetitive. I played a few levels, but I seem to be having a problem with the control not responding as they should. My ship sometimes doesn't move at all for several seconds, and other times it overshoots a direction when I just tapped the key. It's prevented me from passing even just level 1 several times. I finally managed to get it, though I had to miss many enemies because of the issue. I completed level 2 as well, but I think that's where I'll stop. Even replaying those levels and trying to upgrade my ship so this movement issue is less destructive isn't doing much. I still end up running directly into bullets and enemies.