I'm so glad you found all the feedback useful! I can see a really great game in here and you already have so many of the systems in place, with some refinement this could very well rival the like of Gungeon and HLD.
Some other games I have played recently that have interesting, albeit very different, melee combat styles were AUBE and LUCAH. I don't know if they're really compatible with the rest of the gameplay you already have in place, but they might be useful for some brainstorming.
I just revisited the full release of another game I had looked at early on and seeing what it had become was a pretty amazing experience, and I look forward to doing the same here.
BUT THOSE BANANA CANNONS CAN GO EFF THEMSELVES