Hey, nice submission! I thought the art was very cool, nice polygon aesthetic for the asteroids. I liked the sounds the enemies made, and the music fit the atmosphere of being in space.
Took me a good 5 minutes to figure out how to play, and once I did I couldn't figure out what the money was for (other than a score, maybe?). I also never saw what enemies did since I didn't get attacked. I'd say the player's movement could be a bit quicker and more intuitive as well, to reduce travel time for mining and confusion in navigating around the asteroids.
Overall good work. For the limited time frame I'm really impressed with the assets. If you'd like, please check out my submission as well! :)