A note about my judging: My rating scale starts at a baseline 3/5, anything good done raises a score, things that are less good can lower a score. Genre is rated generously. As a game-developer I know that when giving feedback, while I can give suggestions, it's up to you as the developer to determine what accords with your vision.
Enjoyment 3/5: I enjoyed my time with this one overall. It would help if the many enemies were a little less spongy.
Execution 2/5: I appear to be softlocked and unable to defeat this enemy which I assume is blocking progress. A little janky overall but not criminally so besides that.
Sensory: 4/5. No music, but the sounds and cel-shading get you here.
Metroidvania: 2/5. There's exploration but nothing particularly MV, classically or modern-ly, jumps out at me from what I've gotten to before this presumed softlock. It's getting 2/5 on the genre instead of 1/5 just in case I missed it by your bad luck.
Suggestions: Less spongy enemies and/or fewer of them.
More clarity on how to dodge attacks.
A longer range weapon at the start.
Overall a pretty impressive effort for a month long jam, but could use a bit of polish on the encounter design/execution front. I'm not an FPS gamer normally, though, so I'm playing a bit outside my wheelhouse with this one.