Nice work, really fun to play. It's got a good amount of difficulty. I'm not really a fan of how you static you instantly become when swinging. As previously stated in these comments, a little bit of skid or a mobility while swinging would be nice.
Also, as Yomic said, a jump would be great. Even if you can slide through the attacks an extra dimension is really nice. I'd like to also swing in the air or something. Maybe I've played too much lethal league.