Good one! my comments:
Good
- Story and instruccions in game by dialogue
- rewind mechanic works great
- different attacks
- animations are cute
- fast and fun!
Improvements
- Player needs to read dialogue again when loosing (I had the same issue with mine)
- soldiers shoot very fast for my taste and turn very fast as well
Nice work!
I would really appreciate your opinion on mine as well if you have a moment.