Ah. Yeah, I agree, there's a lot of tuning to do! I think one of the first things I'll do post-jam is decrease the minimum jump height, and make a broader swing attack for combat. One of the other things that might be messing with combat is that the attacks only come out when the key is released... which is a side effect of how I implemented the charge move later in the game but I def think I could find a better way for that.
Thanks for the feedback, it helps!