ahhhh this is so good! I'm so happy you included a save game. I got very far in it, but have put off rating games and need to keep going. I'm absolutely going to finish, and would love to see more. I finally got the blaster and that classic metroidvania moment of empowerment feel was very nice and very present.
I felt like maybe something, undefinable, unfortunately, could be changed about the camera or movement. It was very fun, but I'm a bit susceptible to motion sickness, and something about it was really triggering that for me. That's more of a me thing tho, I don't know if anyone else had any issues, and I play other 3d games. Certain ones just do that to me.
One slight annoyance was it felt really hard to avoid being hit by the bonk enemies, and it would have been nice to have a way to do that through skill. tho perhaps my skill was lacking.
Overall a fantastic experience and it's especially impressive the scope of content you were able to achieve in this time!!