The idea and visuals are really interesting! Unfortunately, I ran into a few bugs while playing. There was no sound, the asteroids sometimes disappeared on their own, and occasionally I got a game over right after shooting an asteroid. I hope this feedback helps, and good luck with the jam!
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Thanks for playing!
Unfortunately I didn't get a chance to add audio, so that's not a bug. As per the two bugs you found, I managed to fix them today, but (again) unfortunately I won't be able to upload the update until after the jam is over.
For those interested, the bug was an overflow error in PICO-8. PICO-8 uses signed 16:16 fixed point numbers, so the integer range is -32,768 to +32,767 and the collision algorithm was going above positive into a very large negative, giving false positives for collisions. A simple absolute value function seems to have fixed everything.