The idea isn't bad at all, but the excution gameplay wise is quite rough. You can quite literally speed run the entire level. Now while that's fun, because it feels like you're kinda literally doing a speed run glitch session, it' s definitely not intended at all. And this is combined with the issue of the enemies. You're trying to encourage melee with the combos, but you literally get hit as you're doing an attack because enemies HAVE NO HITSTUN. Which gives no game feel and allows you to get hit rapidly while doing an attack. And on that note you also have NO INVINCIBLITY when hit. Or even any indication you're being hit at all. I literally didn't even realize that I was being hit until I died. And with such small health, you're not encouraged to go melee at all
So this encourages just the speed run.
It's bad game design. If you cleaned up the enemies though you could polish this into a reasonable idea, but as of now it's rough. Boss was fun though, even if simple it had some polish compared to the others. It felt like a good fight.
And I do enjoy the mobility alot (hell why not incorporate a more aerial style of combat where you're encouraged to go fast and smash through enemies akin to this style. Might be pretty damn cool.)
Story was fun though, and the art's endearing.
Overall, I hope you patch this game up and take upon it's potential. I'd like to see what this game could be.