I liked the fact that you can beat the game without ever shooting!
I like that there were many weapon types but unfortunately shooting doesn't feel satisfying enough, you need to work on that. Better sound effects and some screen shake could help.
I liked that fact that there are some gore effects. You could have made the enemy corpses and blood splatters persistent too that would make killing enemies even more satisfying.
I had problem picking up the larger weapons I think their radius is smaller than their sprites you should fix that.
Overall it was a fun little game and I enjoyed playing it! Thank you for making it!