Neat concept.
Controls were innovative and movement felt nice.
I really loved the different effects you had from the movement of the character, to the movement and destroying of the asteroids, it was real clean.
I also liked the sound effects and music. I liked the touch of the golden meteor from time to time.
I really liked how when you managed to defeat the fast moving golden meteor that it gave you double shot, very rewarding.
The pause sound effect was really nice to hear.
Suggestion: It would be cool if you could explore around the world more because I noticed when I moved around close to the edge the camera would kind of follow and it made me feel that I would be able to go further out into the world, while also still having to survive in the game
Another thing that would have been cool would be some sort of big slow moving asteroid that you really have to focus on to defeat and it needs a certain amount of hits before it blows up. This could kind of be like a boss/minigame level, but I think it would be fun to add.
Overall, nice work!