Cool little game you made there, I really enjoyed playing it, although I got stuck in the 5th level, guess I'm just bad at puzzle games. I found it interesting to explore the mechanic of being able to count on enemies shooting in the direction they shot in before the rewind, so you could think of a strategy. I also really liked your music, great job there, it did a lot of work in getting me sucked in really fast. Maybe add another enemy ( I don't know if you might have done that in later levels). But overall I would say you did a great job, it fits the theme very well and is fun to play, so: keep it up!