The environment was nice, though the basic particle effects mixed with the fairly detailed environment felt a little mis-matched.
I also accidentally quit the game two or three times by hitting escape, particularly while I was trying to figure out the controls. Some kind of menu, even if it just had buttons to resume or quit, would have been nice.
Once I figured things out it wasn’t bad. It was pretty easy, though, so something that required more decision making or otherwise kept things interesting would have been good.