Nice game with great art. Really appreciated the backgrounds, particularly the animated surf. And the little UFO lean when moving is subtle but adds a lot. Game just needs a bit of "juice". Particles on hit, sound effects, screenshake etc.
It is good to hear you liked the backgrounds and the surf cos those waves took me quite a long time to get right. I was sitting there doing them then realised I was taking far too long. Partly why I missed other things like sounds and more varity haha.