Addictively enjoyable.
I have been picking up this game a few times a day now for as many days. I don't know what it is, but something about it draws me back. I like how responsive the controls are, the graphics are perfect for the look that was attempted. A simple, crisp style made this nice to the eyes. The added effect when destroying one of the enemies is beautiful in its subtleness. Sounds ridiculous, I know, but those are the things that count in a minimalist game like this. There is enough challenge to keep me coming back and the variety of enemies is good. It never gets so hectic on the screen that you become frustrated, but just enough to always keep you on your toes. Great style and sound. That puts it way up on my list of games I will continue playing for a long time.