Really love all the graphic effects and style, and the music.
As another reviewer said, shooting could be more satisfying. Gameplay seems to need some adjustments, it feels a bit repetitive and unfocused.
Overall, my favorite jam game so far!
Edit:
Sure, I played it a bit again. The explosions look cool, and the hints are definitely helpful, especially regarding the possibility of changing weapon. I also liked how the drone can go underwater (I think you would die in the water previously?)
I feel like you changed something in the graphic filters and/or resolution/zoom. It feels like it has more noise, maybe more contrast, and that I can see the individual pixels better. Honestly, I think that I prefer how it was before, but it's hard to say without a direct comparison (or maybe I'm just imagining things and it's the same).
The shooting still doesn't feel very satisfying, I think that having enemies "knock-back" a bit when they are hit would help a lot in this regard. I also feel that the upgrades could make a much bigger difference, I don't feel much more powerful after 10 upgrades, and the game gets a bit too difficult quickly.