This is a very interesting game. I like the idea of killing enemies by basically slinging asteroids at them. Very difficult to pull off but I like the idea. Also, the humor in the game (at the game over screen) is good
My criticism would be regarding 2 things
1. The boss feels a bit over-powered. As soon as you get in range of its attack, you will get hit (from my experience at least).
There's only 1 generator that powers the gun turrets (from what I've seen). Maybe adding 2 more in different locations would be better? Also, maybe create different varieties for turrets, like laser or missile turrets
Overall, I had so much fun playing this. Nicely done