Hey WayfarerGames! Holy damn, this game feels great! The music, the graphics, the UI, everything is on point! Like a wonderful medley of Just Shapes and Beats and Asteroids. I highly recommend fleshing this out into a bigger game. You could have some lore exposition, enemy types and progression etc.
I think the only suggestions I would make are to increase the width on monitors - there's just so much space to play with that's unused, and to adjust the difficulty curve - goes balls to the walls after the first pentagons.
This was a short fun experience, would love to see more. All the best!