I really like the idea here! Especially for a first jam game, I think the vision is really cool, and I also love that things are procedurally generated! I played through 5 times and enjoyed the variation I saw on each run. I agree with the other comments about the freezing being a little frustrating (especially with no way to restart once frozen). That kind of instant unavoidable death is something I would probably suggest not including in future games. It especially stands out because the other effects I got were pretty cool (I really liked the bomb one!).
A couple of other things I might suggest:
- It would be nice to get more feedback when I'm getting hurt, and when I'm hurting the enemies. A sound effect, flashing their color briefly, screen shake, and/or some other kind of feedback would really add to the feel.
- The music loop is nice, but with a loop that short, it starts to get repetitive the longer you play.
All-in-all, though, I thought this was a really nice jam entry, especially for a first game. Keep at it! Hopefully we'll see more from you in the future :)