Hey I really liked this game. The art style and sound design do a lot to make the game unique. I also liked how you managed to keep the mechanics themselves simple and easy to understand; I was able to get right in without a learning period, which is always good.
I did have an issue with the end boss; the upwards aiming isn't always reliable to the keypress, but I'm sure that can be fixed. I also for some reason expected a defend the point style game, so I spent the first 5 minutes hanging around at the start stopping the enemies from leaving the stage. Maybe that's just because I'm dumb! =)
Anyway, great job! Hope you had fun this year. We certainly did. Feel free to check out our entry: https://ldjam.com/events/ludum-dare/38/k-r-a-b-s /shameless self promotion