Really awesome entry!
A few of the things that stood out to me that were really well done, the game feel and visuals were spot on. The swing slowing you down was both smart cause it prevents spam and makes the gameplay more intentional, but also it adds a sense of weight to the attack. The visuals were just wonderful, not much else to say about them haha. And it had suck wonderful enemy variety. Having the HP be in world too was fantastic as well.
Things I want to note tho, I wish there was a signaling to a purpose, this could be one of two things. Either a score system to signal that its infinite and give the player a purpose of get high score. OR have a ending and clearly tell the player there is a ending, maybe with a progress percentage or level count. Its a minor nitpick but one that I do thing influenced my enjoyment.
The next thing I wanted to not is It was hard for me to tell if the dash was a dash or a melee attack, I think the reason for my confusion was that it looked like the character drew their sword during the dash.
But minor things aside this was just a very fun well executed arcade game, well done!