Wow, best game I've played so far today! I really liked the twist as playing as the asteroids.
I also really liked the cookie clicker style buy menu that allowed me to sort of snowball progress. The graphics and style are very enjoyable and the enemy AI is shockingly good! I liked that I had to avoid the player with the mouse or risk losing my points, sonic ring style.
One thing I will note (and this is completely understandable for a 48hr game), is the menu/settings. I didn't have any luck finding a menu to close out of the game or adjust settings, and I wish there was a setting for screen shake. Having every impact shake the screen was neat and immersive, but may be uncomfortable for a portion of your audience.
All in all, really great game! I had a lot of fun with this and will likely return to play again c: