Ah thanks man, I really appreciate that. I wish I could take credit for the art, but apart from the basic sprites (player and walls), it was all procedurally generated by my man deep-fold who's also on itch (https://deep-fold.itch.io/). Check out their games stuff too! It's awesome work.
And thanks for the feedback about the UI, I was unsure of it's bare bones-ness, I'll be sure to spend more than 3 minutes on it next time lol. I'm glad you liked the 1 minute time, cause it used to be 3 minutes but it dragged a bit and I didn't have enough time to add more content so I'm happy it worked out in the end! About the difficulty, in hindsight I should have slowly increased the asteroid spawn rate, or add an option for reduced rates in the main menu.
Thanks again for your review! I'm just happy to be here and making games honestly.