I really like it! I love the art style, the mechanics are interesting, and with a little more fleshing out and polish I think this would be great!
Just a few things that you may want to consider going forward:
- The deaths are a bit, sudden. You get hit, everything stops, then you restart. I honestly thought it had crashed the first time I died (I was hit from behind). Also dying from one shot is a bit harsh. Perhaps have the player able to withstand only 2 shots, with something on the HUD to indicate where the hit came from, allowing the player to adjust and respond to a hit from behind.
- The text on the screen (primarily objectives) can be a little bit hard to read over the neon in the level. Not a major issue, just thought it was worth dressing :)
Obviously this was for a game jam, and I think you did a good job with the project in that month, and the little gripes I had with it are understandable, but I thought you'd like to hear about them for your future projects :)
Keep it up man! Looking forward to your next release!